GuruMCQs.com provides all updated Physics Multiple Choice Questions (MCQs). Most repeated general science Physics MCQs section, frequently encountered in Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments. Physics most repeated MCQs include basic physics MCQs, Measurements MCQs, Vectors And Equilibrium MCQs, Work and Energy MCQs, Motion and Force MCQs, Circular Motion MCQs, Fluid Dynamics MCQs, Waves MCQs, Heat and Thermodynamics MCQs, Current Electricity MCQs, Electrostatics MCQs, Electromagnetism MCQs, Electromagnetic Induction MCQs, Alternating Current MCQs, Nuclear Physics MCQs, etc.

311. ThedeviceorcircuitusedforconversionofA.C.intoD.C.iscalled_______________?

A.Anamplifier.
B.Arectifier
C.Filteringcircuit
D.Converter.

312. Theespeciallydesignedsemiconductordiodesusedasindicatorlampsinelectroniccircuitsare___________?

A.Theswitch
B.Thelightemittingdiode
C.Thephotodiodes
D.Solarcells.

313. Semi-conductorswithdonoratomsandfreeelectronsbelongtothetype________________?

A.n
B.p
C.mix
D.anyofabove

314. Inp-n-ptransistorthecollectorcurrentis________________?

A.equaltoemittercurrent
B.slightlylessthanemittercurrent
C.greaterthanemittercurrent
D.anyofabove

315. Thesimplesttypeofrectificationknownashalfwaverectificationisobtainedby____________________?

A.usingatransistor
B.suppressingtheharmonicsinA.Cvoltage
C.suppressinghalfwaveofA.Csupplybyusingdiode
D.usingaCoolidgetube

316. Depletionregionofajunctionisformed_____________?

A.duringthemanufacturingprocess
B.underforwardbias
C.underreversebias
D.whentemperaturevaries

317. Whichoneoffollowingbandiscompletelyfilledincaseofconductors?

A.Conductionband
B.Fermiband
C.Valenceband
D.Forbiddenband

318. Thevalueofresistivityforinsulatorisoftheorderof____________?

A.15ohmmetre
B.16ohmmetre
C.17ohmmetre
D.18ohmmetre

319. Forwardcurrentthroughasemiconductordiodecircuitisdueto____________?

A.minoritycarriers
B.majoritycarriers
C.holes
D.electron

320. Whichoneofthefollowingisnotadonorimpurity?

A.antimony
B.phosphorus
C.aluminium
D.arsenic