Identify the correct statement about minority carriers_____________?
A. holes in n-type and free electrons in p-type
B. holes in n-type and p-type
C. free electrons in n-type and holes in p-type
D. free electrons in n-type and p-type
Physics MCQs with Answers
The velocity of an oscillating charge as it moves to and fro along a wire is always_____________?
A. constant
B. zero
C. changing
D. infinite
Which one of the following has the greatest energy gap ?
A. insulator
B. conductor
C. semi conductor
D. any of above
Thermions are________________?
A. protons
B. positrons
C. electrons
D. photons
In the transistor schematic symbol, the arrow_______________?
A. is located on the emitter
B. is located on the base
C. is locate on the collector
D. points form north to south
The semiconductor diode can be used as a rectifier because _______________?
A. It has low resistance to the current flow when forward biased & high resistance when reverse biased.
B. It has low resistance to the current flow when forward biased.
C. It has high resistance to the current flow when reverse biased
D. Its conductivity increases with rise of temperature.
The device or circuit used for conversion of A.C. into D.C. is called_______________?
A. An amplifier.
B. A rectifier
C. Filtering circuit
D. Converter.
The especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?
A. The switch
B. The light emitting diode
C. The photo diodes
D. Solar cells.
Semi-conductors with donor atoms and free electrons belong to the type________________?
A. n
B. p
C. mix
D. any of above
In p-n-p transistor the collector current is________________?
A. equal to emitter current
B. slightly less than emitter current
C. greater than emitter current
D. any of above
