Subject Repository
Electrical Engineering Mcqs
Showing 1281 – 1300 of 3,699 verified multiple choice questions with answers and explanations.
Q1281NTS / FPSC / PPSC
In CE arrangement, the value of input impedance is approximately equal to ______________?
Q1282NTS / FPSC / PPSC
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__________?
Q1283NTS / FPSC / PPSC
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_____________?
Q1284NTS / FPSC / PPSC
Most of the linear ICs are based on the two-transistor differential amplifier because of its___________?
Q1285NTS / FPSC / PPSC
The bandwidth of an RF tuned amplifier is dependent on____________?
Q1286NTS / FPSC / PPSC
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___________?
Q1287NTS / FPSC / PPSC
In a p-n junction diode under reverse bias , the magnitude of electric field is maximum at_____________?
Q1288NTS / FPSC / PPSC
A change in the value of the emitter resistance Re in a differential amplifier?
Q1289NTS / FPSC / PPSC
Thermal runaway is not possible in FET because as the temperature of FET increases_________________?
Q1290NTS / FPSC / PPSC
A zener diode utilizes ______________ characteristics for its operation?
Q1291NTS / FPSC / PPSC
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__________________?
Q1292NTS / FPSC / PPSC
There is a need of transformer for__________________?
Q1293NTS / FPSC / PPSC
The disadvantage of a half-wave rectifier is that the__________________?
Q1294NTS / FPSC / PPSC
A zener diode has ______________ breakdown voltage?
Q1295NTS / FPSC / PPSC
A series resistance is connected in the zener circuit to_______________?
Q1296NTS / FPSC / PPSC
Which of the following is not associated with a p-n junction?
Q1297NTS / FPSC / PPSC
In the breakdown region, a zener didoe behaves like a _______________source?
Q1299NTS / FPSC / PPSC