Electromagnetic Field MCQs with answers Page - 2

Here, you will find a collection of MCQ questions on Electromagnetic Field. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

Admin • 802.91K Points
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Q. Dielectric stregth______with increasing thickness

  • (A) increases
  • (B) decreases
  • (C) remains unaltered
  • (D) none of the above

A

Admin • 802.91K Points
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Q. The property of a capacitor to store electricity is called its

  • (A) capacitance
  • (B) charge
  • (C) energy
  • (D) none of the above

A

Admin • 802.91K Points
Coach

Q. is that property of a capacitor which delays any change of voltage across it.

  • (A) Inductance
  • (B) Capacitance
  • (C) Potential gradient
  • (D) None of the above

A

Admin • 802.91K Points
Coach

Q. A capacitance of 100 f if is connected in series with a resistance of 8000 £2. The time constant of the circuit is

  • (A) 0.2 s
  • (B) 0.4
  • (C) 0.6 s
  • (D) 0.8 s

A

Admin • 802.91K Points
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Q. In a cable capacitor, voltage gradient is maximum at the surface of the

  • (A) earth
  • (B) conduction
  • (C) sheath
  • (D) insulator

A

Admin • 802.91K Points
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Q. Which of the following material has least value of dielectric constant ?

  • (A) Ceramics
  • (B) Oil
  • (C) Glass
  • (D) Paper

A

Admin • 802.91K Points
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Q. Which of the following capacitors will have the least value of breakdown voltage ?

  • (A) Mica
  • (B) Paper
  • (C) Ceramic
  • (D) Electrolytic

A

Admin • 802.91K Points
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Q. The value of dielectric constant for vacuum is taken as

  • (A) zero
  • (B) 1
  • (C) 4
  • (D) 10

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