Electronics

A. using a transistor
B. suppressing the harmonics in A.C voltage
C. suppressing half wave of A.C supply by using diode
D. using a Coolidge tube

A. equal to emitter current
B. slightly less than emitter current
C. greater than emitter current
D. any of above

A. n
B. p
C. mix
D. any of above

A. The switch
B. The light emitting diode
C. The photo diodes
D. Solar cells.

A. An amplifier.
B. A rectifier
C. Filtering circuit
D. Converter.

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.

A. is located on the emitter
B. is located on the base
C. is locate on the collector
D. points form north to south

A. protons
B. positrons
C. electrons
D. photons

A. insulator
B. conductor
C. semi conductor
D. any of above

A. constant
B. zero
C. changing
D. infinite