Q. at a point is equal to the negative potential gradient at that point.
✅ Correct Answer: (A)
Electric intensity
Electromagnetic Field MCQs | Page - 2
Dear candidates you will find MCQ questions of Electromagnetic Field here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. The unit of dielectric strength is given by
✅ Correct Answer: (A)
V/m
Q. Dielectric stregth______with increasing thickness
✅ Correct Answer: (B)
decreases
Q. The property of a capacitor to store electricity is called its
✅ Correct Answer: (A)
capacitance
Q. is that property of a capacitor which delays any change of voltage across it.
✅ Correct Answer: (B)
Capacitance
Q. A capacitance of 100 f if is connected in series with a resistance of 8000 £2. The time constant of the circuit is
✅ Correct Answer: (D)
0.8 s
Q. In a cable capacitor, voltage gradient is maximum at the surface of the
✅ Correct Answer: (B)
conduction
Q. Which of the following material has least value of dielectric constant ?
✅ Correct Answer: (B)
Oil
Q. Which of the following capacitors will have the least value of breakdown voltage ?
✅ Correct Answer: (D)
Electrolytic
Q. Dielectric constant for mica is nearly
✅ Correct Answer: (C)
3 to 8
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