A 741-type OP-AMP has a gain-bandwidth product of 1MHz. A non-inverting amplifier using this op-amp & having a voltage gain of 20db will exhibit -3db bandwidth of__________?

A. 50 khz
B. 100khz
C. 1000/17 khz
D. 1000/7.07 khz

A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are_____________?

A. 5 ω & 20 %
B. 25 ω & 20 %
C. 5 ω & 16.7 %
D. 25 ω & 16.7 %

Most of the linear ICs are based on the two-transistor differential amplifier because of its___________?

A. Input voltage dependent linear transfer characteristic
B. High voltage gain
C. High input resistance
D. High cmrr

The bandwidth of an RF tuned amplifier is dependent on____________?

A. Q –factor of the tuned o/p circuit
B. Q –factor of the tuned i/p circuit
C. Quiescent operating point
D. Q-factor of the o/p and i/p circuits as well as quiescent operating point

A constant current signal across a parallel RLC circuits gives an o/p of 1.4v at the signal frequency of 3.89KHZ and 4.1KHZ .At the frequency of 4KHZ,the o/p voltage will be___________?

A. 1 v
B. 2v
C. 1.4v
D. 2.8v

In a p-n junction diode under reverse bias , the magnitude of electric field is maximum at_____________?

A. The edge of the depletion region on the p-side
B. The edge of the depletion region on the n-side
C. The p-n junction
D. The center of the depletion region on the n-side

A change in the value of the emitter resistance Re in a differential amplifier?

A. Affects the difference mode gain ad
B. Affects the common mode gain ac
C.aFfects both ad and ac
D. Does not effect either ad and ac

Thermal runaway is not possible in FET because as the temperature of FET increases_________________?

A. The mobility decreases
B. The transconductance increases
C. The drain current increases
D. None of the above

A zener diode utilizes ______________ characteristics for its operation?

A. Forward
B. Reverse
C. Both forward and reverse
D. None of the above

If the a.c. input to a half-wave rectifier is an r.m.s value of 400/√2 volts, then diode PIV rating is__________________?

A. 400/√2 v
B. 400 v
C. 400 x √2 v
D. None of the above