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.Management Sciences
Category: Electronics
The device used for conversion of D.C. to A.C. is called______________?
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A. Converter
B. A rectifier
C. Inverter
D. Oscillator
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.
The operational amplifier is______________?
A. A high gain amplifier
B. A high-power amplifier
C. A high resistance amplifier
D. A low resistance amplifier
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.
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
In half-wave rectification the output D.C. voltages is obtained across the load for_______________?
A. The negative half cycle of A.C.
B. The positive half cycle of A.C.
C. The positive and negative half cycles
D. Either positive or negative half of A.C.
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 velocity of an oscillating charge as it moves to and fro along a wire is always_____________?
A. constant
B. zero
C. changing
D. infinite
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