http://www.eeweb.com/feeds/quizzes/ 2013-06-19T02:09:56-07:00 EEWeb info@eeweb.com http://www.eeweb.com/electronics-quiz/isotropic-antenna/ 2013-06-18T23:24:23-07:00 2013-06-19T01:42:24-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>In the figure shown, two antennas are “welded” together with an input signal of 10 dBm. How much power will be measured by a multimeter at the end of L2 where Line loss L1 = L2 = 0.5 and 10log L1 or L2 = 3 dB?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/06/19/Antenna-Gain-1371627605_442_173.png" width="442" height="173" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/isotropic-antenna/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/Cri_dx5r0eo" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/isotropic-antenna/ http://www.eeweb.com/electronics-quiz/traveling-wave-tube/ 2013-06-16T23:20:45-07:00 2013-06-17T01:03:46-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>In microwave principles, what is the primary purpose of a Traveling-Wave Tube?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/06/17/twt-1371452061_302_201_75.jpg" width="302" height="201" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/traveling-wave-tube/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/3sjohO7A_QY" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/traveling-wave-tube/ http://www.eeweb.com/electronics-quiz/inverting-amplifier-with-diode-resistor-feedback/ 2013-06-11T23:00:57-07:00 2013-06-13T21:39:58-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>In the Op-Amp shown in the figure, calculate the output voltage if the input voltage is: (a) 2V; (b) -2V. Use ideal diode assumption.</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/06/11/Quiz_Problem-3_Problem-1370936564_322_236.png" width="322" height="236" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/inverting-amplifier-with-diode-resistor-feedback/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/sqJPVtG88gU" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/inverting-amplifier-with-diode-resistor-feedback/ http://www.eeweb.com/electronics-quiz/inverting-amplifier/ 2013-06-09T23:03:01-07:00 2013-06-10T00:09:02-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>What is the purpose and value of Rc in the circuit shown?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/06/10/Inverting-Amplifier-1370844341_391_292.png" width="391" height="292" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/inverting-amplifier/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/joW3XXaaZWE" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/inverting-amplifier/ http://www.eeweb.com/electronics-quiz/difference-amplifier/ 2013-06-07T01:35:51-07:00 2013-06-07T02:41:52-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>Design a difference amplifier with the given circuit such that vo= 2vb- 5va. The resistance seen by source vb is 600 k𝜴, and the resistance seen by the signal source va is 18 k𝜴 when output voltage vo is zero. Specify the values of Ra, Rb,Rc and Rd. </p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/06/07/Difference-Amplifier-1370594512_472_361.png" width="472" height="361" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/difference-amplifier/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/-BAMub_yEuM" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/difference-amplifier/ http://www.eeweb.com/electronics-quiz/op-amp-with-voltage-regulator/ 2013-06-05T00:01:52-07:00 2013-06-06T18:40:54-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>In the circuit shown in the figure, the op-amp is ideal. If <span class="latex">\beta = 60</span> , calculate the total current supplied by the 15 V source.</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/06/05/Quiz_Problem-1-1370419023_450_350.png" width="450" height="350" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/op-amp-with-voltage-regulator/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/ZEtOU5XT1to" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/op-amp-with-voltage-regulator/ http://www.eeweb.com/electronics-quiz/op-amps-and-capacitive-loads/ 2013-05-17T00:00:14-07:00 2013-05-16T17:04:15-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>How can you deal with driving capacitive loads with op amps?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/16/MAX9910-cap-load-no-Riso-2-1368744900_500_260.png" width="500" height="260" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/op-amps-and-capacitive-loads/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/0k0otFi2YkA" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/op-amps-and-capacitive-loads/ http://www.eeweb.com/electronics-quiz/state-variable-filter/ 2013-05-16T00:00:54-07:00 2013-05-14T16:45:55-07:00

<strong>Category:</strong> Analog<br /> <p> <strong>Question:</strong><br /> <p>How do you tune this filter? What components/values do you change?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/14/state-variable-filter-circuit-close-1368571388_500_287.png" width="500" height="287" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/state-variable-filter/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/K-1GgMocAnA" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/state-variable-filter/ http://www.eeweb.com/electronics-quiz/mesh-currents/ 2013-05-15T00:00:58-07:00 2013-05-10T14:29:59-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>Can you calculate the mesh currents in this circuit?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/09/mesh-currents-circuit-1368126001_500_240_75.jpg" width="500" height="240" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/mesh-currents/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/Fiv3AEWnuKE" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/mesh-currents/ http://www.eeweb.com/electronics-quiz/astable-multivibrator/ 2013-05-14T00:00:50-07:00 2013-05-10T13:27:51-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>When the RC networks of this circuit charge and discharge, what happens with the transistors and their corresponding outputs?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/10/Astable-Multivibrator-Scheme-it-circuit-1368213941_500_259.png" width="500" height="259" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/astable-multivibrator/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/JZyGEzpglcA" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/astable-multivibrator/ http://www.eeweb.com/electronics-quiz/underdamped-filter-phenomenon/ 2013-05-13T00:00:27-07:00 2013-05-10T14:29:28-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>In the previous quiz, plots of the the Sallen-Key low pass active filter were shown with a few different values of R2 to show how they determine the response of the filter.<br /> This quiz asks about an effect when the filter is being fed a signal, in the audible range, where the filter is underdamped, and filtering an audio tone between 250Hz and 1000Hz for example, but overshoots and undershoots the intended signal output. What is this phenomenon commonly called? (see plot) </p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/10/Sallen-Key-rining-plot-1368217503_500_275.png" width="500" height="275" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/underdamped-filter-phenomenon/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/HwsJhKZIwyA" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/underdamped-filter-phenomenon/ http://www.eeweb.com/electronics-quiz/sallen-key-low-pass-filter/ 2013-05-10T00:00:40-07:00 2013-05-09T10:56:41-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>What gives this variation of the Sallen-Key Filter it&#8217;s name?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/09/Sallen-Key-circuit-1368118485_500_265.png" width="500" height="265" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/sallen-key-low-pass-filter/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/UQGtQrweGFI" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/sallen-key-low-pass-filter/ http://www.eeweb.com/electronics-quiz/dampening-factor/ 2013-05-09T00:00:48-07:00 2013-05-08T11:40:49-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>Is this tank circuit overdamped, underdamped, or critically damped?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/08/underdamped-circuit-1368034315_500_343.png" width="500" height="343" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/dampening-factor/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/o4ShJWLGAxk" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/dampening-factor/ http://www.eeweb.com/electronics-quiz/resonant-circuits/ 2013-05-07T23:59:06-07:00 2013-05-08T08:48:07-07:00

<strong>Category:</strong> <br /> <p> <strong>Question:</strong><br /> <p>These two circuits resonate at the same frequency, but what important difference must noted about their performance?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/07/bode-plots-circuits-1367959983_500_222.png" width="500" height="222" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/resonant-circuits/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/ZyoedpfD7JI" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/resonant-circuits/ http://www.eeweb.com/electronics-quiz/what-circuit-is-this/ 2013-05-07T00:00:52-07:00 2013-05-07T08:32:53-07:00

<strong>Category:</strong> Analog<br /> <p> <strong>Question:</strong><br /> <p>What circuit is this?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/06/colpitts-no-values-1367873862_500_203.png" width="500" height="203" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/what-circuit-is-this/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/RBqtQbG3X34" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/what-circuit-is-this/ http://www.eeweb.com/electronics-quiz/what-ic-is-this/ 2013-05-06T00:00:02-07:00 2013-05-01T13:08:03-07:00

<strong>Category:</strong> Digital ICs<br /> <p> <strong>Question:</strong><br /> <p>This grouping of a couple comparators and a flip flop form the basis of an unimaginable number of products and projects.<br /> What is it?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/05/01/555-timer-1367435205_500_412.png" width="500" height="412" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/what-ic-is-this/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/G7WJBfTBgmQ" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/what-ic-is-this/ http://www.eeweb.com/electronics-quiz/logic-circuit/ 2013-05-02T00:00:21-07:00 2013-04-30T14:54:22-07:00

<strong>Category:</strong> General<br /> <p> <strong>Question:</strong><br /> <p>How does this circuit work and what is a problem with it that makes it undesirable?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/04/30/RS-flip-flop-ans-1367355262_363_158.png" width="363" height="158" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/logic-circuit/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/q_6L0rhmZEs" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/logic-circuit/ http://www.eeweb.com/electronics-quiz/boolean-and-nor-nand/ 2013-04-30T12:26:32-07:00 2013-04-30T14:01:33-07:00

<strong>Category:</strong> General<br /> <p> <strong>Question:</strong><br /> <p>The Boolean expression: F= (AB + CD + E)&#8217; can be graphed as shown. How else can it be graphed?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/04/30/boolean-and-nor-nand-quiz-1367351675_500_334.png" width="500" height="334" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/boolean-and-nor-nand/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/ozA_yD3HKC8" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/boolean-and-nor-nand/ http://www.eeweb.com/electronics-quiz/a-555-timer-pwm-motor-controller/ 2013-04-16T00:00:25-07:00 2013-04-16T07:26:26-07:00

<strong>Category:</strong> Digital ICs<br /> <p> <strong>Question:</strong><br /> <p>Here is a circuit that will output a <span class="caps">PWM</span> wave good for varying the speed of a DC motor. Why is this not going to work? How would you fix it?<br /> &nbsp;<br /> </p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/04/15/555-PWM-motor-controller-quiz-1366060815_500_439.png" width="500" height="439" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/a-555-timer-pwm-motor-controller/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/fzZs63Kcj3E" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/a-555-timer-pwm-motor-controller/ http://www.eeweb.com/electronics-quiz/gated-sr-latches/ 2013-04-12T14:08:43-07:00 2013-04-12T16:17:45-07:00

<strong>Category:</strong> Digital ICs<br /> <p> <strong>Question:</strong><br /> <p>For this positive edge triggered flip-flop what are the output waveforms?</p> </p> <p><img src="http://d3i5bpxkxvwmz.cloudfront.net/resized/images/remote/http_s.eeweb.com/quizzes/2013/04/12/SR-Latch-Quiz-question-1365803041_500_199.png" width="500" height="199" alt="" /></p> <p><a href="http://www.eeweb.com/electronics-quiz/gated-sr-latches/">See answer</a></p> <img src="http://feeds.feedburner.com/~r/EEWebQuiz/~4/emmZIFepVTQ" height="1" width="1"/>

http://www.eeweb.com/electronics-quiz/gated-sr-latches/