tag:blogger.com,1999:blog-71196758371477810732024-08-28T07:26:51.472-07:00MCQsGATE,electronics and communications multiple choice questions
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Reference: Millman & HalkiasAnonymoushttp://www.blogger.com/profile/03320753095246667299noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7119675837147781073.post-87496419317717433232012-10-09T18:17:00.002-07:002012-10-09T18:20:44.834-07:00Basic electronics MCQs 2<div dir="ltr" style="text-align: left;" trbidi="on">
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<CENTER><B><U>BASIC ELECTRONICS MCQs</U></B></CENTER>
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<BLOCKQUOTE>
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<FORM NAME="testform">
1. Doping of a semi conductor increases_______<UL>
<INPUT TYPE="checkbox" NAME="check1" Value="Check1"> A) Resistivity<br>
<INPUT TYPE="checkbox" NAME="check2" Value="Check2"> B) Conductivity<br>
<INPUT TYPE="checkbox" NAME="check3" Value="Check3"> C) Inductance<br>
<INPUT TYPE="checkbox" NAME="check4" Value="Check4"> D) None<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton1(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
2. Majority carriers in n-type semiconductor are<UL>
<INPUT TYPE="checkbox" NAME="check5" Value="Check5"> A) Electrons<br>
<INPUT TYPE="checkbox" NAME="check6" Value="Check6"> B) Holes<br>
<INPUT TYPE="checkbox" NAME="check7" Value="Check7"> C) both<br>
<INPUT TYPE="checkbox" NAME="check8" Value="Check8"> D) none<br><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton2(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
3. Minority carriers in n-type semiconductor are<UL>
<INPUT TYPE="checkbox" NAME="check9" Value="Check9"> A) Electrons<br>
<INPUT TYPE="checkbox" NAME="check10" Value="Check10"> B) Holes<br>
<INPUT TYPE="checkbox" NAME="check11" Value="Check11"> C) both<br>
<INPUT TYPE="checkbox" NAME="check12" Value="Check12"> D) none<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton3(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
4. Majority carriers in P-type semiconductor are<UL>
<INPUT TYPE="checkbox" NAME="check13" Value="Check13"> A) Electrons<br>
<INPUT TYPE="checkbox" NAME="check14" Value="Check14"> B) Holes<br>
<INPUT TYPE="checkbox" NAME="check15" Value="Check15"> C) Both<br>
<INPUT TYPE="checkbox" NAME="check16" Value="Check16"> D) None<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton4(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
5. Minority carriers in P-type semiconductor are<UL>
<INPUT TYPE="checkbox" NAME="check17" Value="Check17"> A) Electrons<br>
<INPUT TYPE="checkbox" NAME="check18" Value="Check18"> B) Holes<br>
<INPUT TYPE="checkbox" NAME="check19" Value="Check19"> C) Both<br>
<INPUT TYPE="checkbox" NAME="check20" Value="Check20"> D) none<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton5(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
6. In which material free electron concentration is approximately equal to density of donor atoms<UL>
<INPUT TYPE="checkbox" NAME="check21" Value="Check21"> A) N-type<br>
<INPUT TYPE="checkbox" NAME="check22" Value="Check22"> B) P-Type<br>
<INPUT TYPE="checkbox" NAME="check23" Value="Check23"> C) Both<br>
<INPUT TYPE="checkbox" NAME="check24" Value="Check24"> D) none<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton6(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
7. In intrinsic semi conductor, Fermi level(E<super>f</super>) lies in the _____ of energy gap<UL>
<INPUT TYPE="checkbox" NAME="check25" Value="Check25"> A) top<br>
<INPUT TYPE="checkbox" NAME="check26" Value="Check26"> B) bottom<br>
<INPUT TYPE="checkbox" NAME="check27" Value="Check27"> C) middle<br>
<INPUT TYPE="checkbox" NAME="check28" Value="Check28"> D) corner<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton7(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
8. Increasing the temperature of either P-type and N-type material moves the Fermi level towards the_____of the forbidden energy gap<UL>
<INPUT TYPE="checkbox" NAME="check29" Value="Check29"> A) Top<br>
<INPUT TYPE="checkbox" NAME="check30" Value="Check30"> B) Bottom<br>
<INPUT TYPE="checkbox" NAME="check31" Value="Check31"> C) Corner<br>
<INPUT TYPE="checkbox" NAME="check32" Value="Check32"> D) Centre<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton8(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
9. ______is mostly used as a recombination agent by semiconductor manufacturers<UL>
<INPUT TYPE="checkbox" NAME="check33" Value="Check33"> A) Silver<br>
<INPUT TYPE="checkbox" NAME="check34" Value="Check34"> B) Gold<br>
<INPUT TYPE="checkbox" NAME="check35" Value="Check35"> C) Iron<br>
<INPUT TYPE="checkbox" NAME="check36" Value="Check36"> D) Zinc<BR><p>
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<BR><P>
10. ______is used to determine whether a metal or semi conductor is of P-type or N-type<UL>
<INPUT TYPE="checkbox" NAME="check37" Value="Check37"> A) Lenz's law<br>
<INPUT TYPE="checkbox" NAME="check38" Value="Check38"> B) Faraday's law<br>
<INPUT TYPE="checkbox" NAME="check39" Value="Check39"> C) Hall effect<br>
<INPUT TYPE="checkbox" NAME="check40" Value="Check40"> D) Bohr's law<BR><p>
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<br /></div>Anonymoushttp://www.blogger.com/profile/03320753095246667299noreply@blogger.com0tag:blogger.com,1999:blog-7119675837147781073.post-31623085118907543542012-10-08T12:16:00.002-07:002012-10-08T12:16:54.515-07:00Basic electronics multiple choice quiz 1<div dir="ltr" style="text-align: left;" trbidi="on">
<TITLE>Multiple Choice Quiz</TITLE>
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<CENTER><B><U>BASIC ELECTRONICS MCQs</U></B></CENTER>
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<BR><P><BR><P>
<!-- START QUESTIONS -->
<BLOCKQUOTE>
<FONT FACE="ARIAL" Size="+1" COLOR="BLACK">
<FORM NAME="testform">
1. Charge of the electron is ___ :<UL>
<INPUT TYPE="checkbox" NAME="check1" Value="Check1"> A) 1.602x10<sup>-19 </sup>C<br>
<INPUT TYPE="checkbox" NAME="check2" Value="Check2"> B) 1.602x10<sup>-19 </sup> A<br>
<INPUT TYPE="checkbox" NAME="check3" Value="Check3"> C) 1.602x10<sup>19 </sup> C<br>
<INPUT TYPE="checkbox" NAME="check4" Value="Check4"> D) 1.602x10<sup>19 </sup> A<BR><p>
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2. The number of electrons per coloumb is ___<UL>
<INPUT TYPE="checkbox" NAME="check5" Value="Check5"> A) 1.602x10<sup>18 </sup><br>
<INPUT TYPE="checkbox" NAME="check6" Value="Check6"> B) 6x10<sup>8 </sup><br>
<INPUT TYPE="checkbox" NAME="check7" Value="Check7"> C) 6x10<sup>18 </sup><br>
<INPUT TYPE="checkbox" NAME="check8" Value="Check8"> D) 6x10<sup>-18 </sup><br><p>
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onClick="testButton2(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
3. Mass of an electron is ____<UL>
<INPUT TYPE="checkbox" NAME="check9" Value="Check9"> A) 9.1x10<sup>-31</sup> kg<br>
<INPUT TYPE="checkbox" NAME="check10" Value="Check10"> B) 9.1x10<sup>-31</sup> g<br>
<INPUT TYPE="checkbox" NAME="check11" Value="Check11"> C) 9.1x10<sup>18</sup> g<br>
<INPUT TYPE="checkbox" NAME="check12" Value="Check12"> D) 9.1x10<sup>-18</sup> kg<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton3(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
4. one eV (electron Volt) is equal to______<UL>
<INPUT TYPE="checkbox" NAME="check13" Value="Check13"> A) 1.6x10<sup>-19 </sup> A <br>
<INPUT TYPE="checkbox" NAME="check14" Value="Check14"> B) 1.6x10<sup>-19 </sup> C<br>
<INPUT TYPE="checkbox" NAME="check15" Value="Check15"> C) 1.6x10<sup>-19 </sup> J <br>
<INPUT TYPE="checkbox" NAME="check16" Value="Check16"> D) 1.6x10<sup>-19 </sup> Kg<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton4(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
5. Diamond is an_______<UL>
<INPUT TYPE="checkbox" NAME="check17" Value="Check17"> A) Conductor <br>
<INPUT TYPE="checkbox" NAME="check18" Value="Check18"> B) Insulator <br>
<INPUT TYPE="checkbox" NAME="check19" Value="Check19"> C) Semi Conductor<br>
<INPUT TYPE="checkbox" NAME="check20" Value="Check20"> D) none of the above<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton5(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
6. _________ elements are added to pure Ge to make it extrinsic <UL>
<INPUT TYPE="checkbox" NAME="check21" Value="Check21"> A) covalent <br>
<INPUT TYPE="checkbox" NAME="check22" Value="Check22"> B) Trivalent<br>
<INPUT TYPE="checkbox" NAME="check23" Value="Check23"> C) Pentavalent <br>
<INPUT TYPE="checkbox" NAME="check24" Value="Check24"> D) None<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton6(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
7. Pentavalent impurities are _________<UL>
<INPUT TYPE="checkbox" NAME="check25" Value="Check25"> A) Donors<br>
<INPUT TYPE="checkbox" NAME="check26" Value="Check26"> B) Acceptors<br>
<INPUT TYPE="checkbox" NAME="check27" Value="Check27"> C) Both<br>
<INPUT TYPE="checkbox" NAME="check28" Value="Check28"> D) None<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton7(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
8. Example of pentavalent impurity atom?<UL>
<INPUT TYPE="checkbox" NAME="check29" Value="Check29"> A) Germanium <br>
<INPUT TYPE="checkbox" NAME="check30" Value="Check30"> B) antimony <br>
<INPUT TYPE="checkbox" NAME="check31" Value="Check31"> C) Silicon<br>
<INPUT TYPE="checkbox" NAME="check32" Value="Check32"> D) All of the above<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton8(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
9. Example of trivalent impurity atom?<UL>
<INPUT TYPE="checkbox" NAME="check33" Value="Check33"> A) Antimony <br>
<INPUT TYPE="checkbox" NAME="check34" Value="Check34"> B) Phosporous<br>
<INPUT TYPE="checkbox" NAME="check35" Value="Check35"> C) Boron <br>
<INPUT TYPE="checkbox" NAME="check36" Value="Check36"> D) None<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton9(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
<BR><P>
10. Acceptor impurities are of <UL>
<INPUT TYPE="checkbox" NAME="check37" Value="Check37"> A) Both <br>
<INPUT TYPE="checkbox" NAME="check38" Value="Check38"> B) N-type material<br>
<INPUT TYPE="checkbox" NAME="check39" Value="Check39"> C) P-type material <br>
<INPUT TYPE="checkbox" NAME="check40" Value="Check40"> D) None<BR><p>
<INPUT TYPE="button" NAME="button" Value="CHECK"
onClick="testButton10(form)"> <INPUT TYPE="reset" VALUE="CLEAR"></UL>
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<br /></div>Anonymoushttp://www.blogger.com/profile/03320753095246667299noreply@blogger.com0