Correct Answer:- Option-C
Question58:-In a JFET, *"I_{DSS}"" is known as
A:-Drain to source current
B:-Drain to source current with gate shorted
C:-Drain to source current with gate open
D:-None of the above
Correct Answer:- Option-B
Question59:-Which of the following devices has the highest input impedance?
۸۲
B:-Ordinary transistor
C:-Crystal diode
D:-MOSFET
Correct Answer:- Option-D
Question60:-An SCR is turned off when
A:-Anode current is reduced to zero
B:-Gate voltage is reduced to zero
C:-Gate is reverse biased
D:-None of the above
Correct Answer:- Option-A
Question61:-A diac is switch.
A:-AC
B:-DC
C:-Mechanical
D:-None of the above
Correct Answer:- Option-A
Question62:-A UJT may be used as
A:-Amplifier
B:-Saw tooth generator
C:-Rectifier
D:-None of the above
Correct Answer:- Option-B
Question63:-The horizontal plates of a CRO are supplied with to observe the waveform of a signal.
A:-Sinusoidal wave
B:-Cosine wave
:-Sawtooth wave
D:-None of the above
Correct Answer:- Option-C
Question64:-The modulus of a counter is
A:-The number of flipflops
B:-The actual number of states in its sequence
:-The number of times it recycles in a sec
D:-The maximum no of states
Correct Answer:- Option-B

Question65:-The digital circuit that routes its single input signal to one of *2“n* output lines depending on the value of *n*
control lines is

A:-multiplexer
-demultiplexer
C:-encoder
D:-data selector
Correct Answer:- Option-B
Question66:-A full adder can be made up of
A:-two half adders
B:-two half adders and a NOT gate
C:-two half adders and a OR gate
D:-two half adders and a AND gate
Correct Answer:- Option-C
Question67:-Which of the following is called the Universal Bias?
A:-Emitter bias
B:-Voltage divider bias