A. 4
B. 1
C. 3
D. More than 10
✅ The correct answer is option B.
Electrical Engineering MCQs
A monostable vibrator has_____________
A. No stable state
B. One stable state
C. Two stable states
D. None of the above
✅ The correct answer is option B.
The purpose of a coupling capacitor in a transistor amplifier is to ___________________?
A. Increase the output impedance of transistor
B. Protect the transistor
C. Pass a.c. and block d.c.
D. Provide biasing
✅ The correct answer is option C.
For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?
A. Be zero
B. Be 0.01 V
C. Not fall below 0.7 V
D. Be between 0 V and 0.1 V
✅ The correct answer is option C.
A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 kΩ. The other resistor value is____________?
A. 1,403 Ω
B. 4.7 kΩ
C. 2 kΩ
D. 3,403 Ω
✅ The correct answer is option B.
The purpose of emitter capacitor (i.e. capacitor across RE) is to ______________?
A. Avoid voltage gain drop
B. Forward bias the emitter
C. Reduce noise in the amplifier
D. None of the above
✅ The correct answer is option A.
A voltage divider consists of two 68 kΩ resistors and a 24 V source. The unknown output voltage is______________?
A. 12 V
B. 24 V
C. 0 V
D. 6 V
✅ The correct answer is option A.
_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?
A. Silver
B. Steel
C. Aluminium
D. Copper
✅ The correct answer is option D.
The radio wave picked up by the receiving antenna is amplified about _________________ times to have reasonable sound output?
A. 1000
B. A million
C. 100
D. 10000
✅ The correct answer is option B.
An n-type semiconductor is______________?
A. Positively charged
B. Negatively charged
C. Electrically neutral
D. None of the above
✅ The correct answer is option C.