A. during the manufacturing process
B. under forward bias
C. under reverse bias
D. when temperature varies
Related Mcqs:
- p-n junction when reversed biased acts as a_______________?
A. capacitor
B. inductor
C. on switch
D. off switch - An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?
A. E = BeV
B. B = eE/V
C. E = BV
D. E = BeV/2 - In hydrogen spectrum which one of the following series lies in the ultraviolet region ?
A. Balmer series
B. Pfund series
C. Bracket series
D. Lymann series - Semi-conductor germanium and silicon are_________________?
A. pentavalent
B. trivalent
C. divalent
D. tetravalent - Thermions are________________?
A. protons
B. positrons
C. electrons
D. photons - Acceptor and donor impurities donate______________?
A. n-carriers only
B. p-carriers only
C. p-carriers and n-carriers respectively
D. n-carriers and p-carriers respectively - The device used for conversion of D.C. to A.C. is called______________?
A. Converter
B. A rectifier
C. Inverter
D. Oscillator - In full wave rectification the output D.C. voltage across the load is obtained for_____________?
A. The positive half cycle of input A.C.
B. The negative half cycle of input A.C.
C. The complete cycle of input A.C.
D. All of the above. - The working of transistor as amplifier is similar to________________?
A. Step up transformer
B. Step down transformer
C. Three diodes in common
D. Triode vacuum tube - The rectangular voltage is an example of____________________?
A. An analogue waveform
B. Continuous wave form
C. Electronic waveform
D. A digital waveform
