A. 10-8 mm
B. 10″6 cm
C. 10″10 m
D. 10~14 m
✅ The correct answer is option C.
Basic Electrical Mcqs MCQs
12. Which of the following has no units?
A. Permeability
B. Moment of a magnet
C. Magnetic susceptibility
D Permittivity
✅ The correct answer is option C.
13. A thermistor has_____________?
A. positive temperature coefficient
B. negative temperature coefficient
C. zero temperature coefficient
D. variable temperature coefficient
✅ The correct answer is option C.
14. Which of the following are the passive elements?
A. Resistor
B. Bulb
C. Both
D. None of these.
✅ The correct answer is option C.
15. Internal resistance of ideal current source is ?
A. zero
B. infinite
C. finite
B. 100 ohms
✅ The correct answer is option B.
16. Which quantity consists of a unit 1KWh ?
A. Energy
B. Time
C. Power
D. Charge
✅ The correct answer is option A.
17. Inductor does not allow the sudden change of
A. current
B. voltage
C. power
D. None of the above
✅ The correct answer is option A.
18. The number of electrons in the outer most orbit of carbon atom is___________?
A. 3
B. 4
C. 6
D. 7
✅ The correct answer is option B.
19. With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals_____________?
A. 10 W
B. 20 W
C. 40 W
D. 60 W
✅ The correct answer is option D.
20. Power dissipation in ideal inductor is
A. Maximum
B. Minimum
C. Zero
D. A finite value
✅ The correct answer is option C.