1. Which quantity should be measured by the voltmeter ?
A. Current
B. Voltage
C. Power
D. Speed
✅ The correct answer is option B.
Basic Electrical Mcqs MCQs
2. One newton meter is same as_____________?
A. one watt
B. one joule
C. five joules
D. one joule second
✅ The correct answer is option B.
3. Which of the following can have negative temperature coefficient _____________?
A. Compounds of silver
B. Liquid metals
C. Metallic alloys
D. Electrolytes
✅ The correct answer is option D.
4. Capacitor does not allow the sudden change of ?
A. current
B. voltage
C. power
D. None of the above
✅ The correct answer is option B.
5. Which of the following quantities consists of SI unit as WATT ?
A. Force
B. Charge
C. Current
D. Power
✅ The correct answer is option D.
6. Conductance : mho :: ____________?
A. resistance : ohm
B. capacitance : henry
C. inductance : farad
D. lumen : steradian
✅ The correct answer is option A.
7. When a voltage of one volt is applied, a circuit allows one micro ampere current to flow through it. The conductance of the circuit is___________?
A. 1 n-mho
B. 106 mho
C. 1 milli-mho
D. none of the above
✅ The correct answer is option A.
8. Nichrome wire is an alloy of_____________?
A. lead and zinc
B. chromium and vanadium
C. nickel and chromium
D. copper and silver
✅ The correct answer is option C.
9. If/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?
A. I2Rt
B. I2Rf
C. I2R2t
D. I2R2t*
✅ The correct answer is option A.
10. Internal resistance of ideal voltage source is ?
A. zero
B. infinite
C. finite
D. 100 ohms
✅ The correct answer is option A.