Electromagnetic Field MCQs with answers Page - 9

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

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Q. Magnetic susceptibility is _________.

  • (A) unitless
  • (B) dimensionless
  • (C) both (a) and (b)
  • (D) none of these

A

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Q. On the basis of magnetic behaviour, materials are classified into _________ categories.

  • (A) 2
  • (B) 3
  • (C) 4
  • (D) 5

A

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Q. ε0 is ________ F/m.

  • (A) 8.854 × 10−12
  • (B) 6.654 × 10−12
  • (C) 8.854 × 10−10
  • (D) 6.654 × 10−10

A

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Q. Electric dipole is a pair of __________ and __________ point charges.

  • (A) Equal and same
  • (B) Unequal and same
  • (C) Equal and opposite
  • (D) Unequal and opposite

A

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Q. Which of the following capacitors will have the least variation ?

  • (A) Paper capacitor
  • (B) Ceramic capacitor
  • (C) Silver plated mica capacitor
  • (D) None of the above

A

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Q. Which of the following capacitors has relatively shorter shelf life ?

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

A

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Q. In the case of a lossy capacitor, its series equivalent resistance value will be

  • (A) small
  • (B) very small
  • (C) large
  • (D) zero

A

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Q. When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will

  • (A) remain uncharged
  • (B) decrease
  • (C) increase
  • (D) become zero

A

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Q. Capacitance increases with

  • (A) increase in plate area and decrease in distance between the plates
  • (B) increase in plate area and distance between the plates
  • (C) decrease in plate area and value of applied voltage
  • (D) reduction in plate area and distance between the plates

A

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Q. A capacitor consists of

  • (A) two insulators separated by a conductor
  • (B) two conductors separated by an insulator
  • (C) two insulators only
  • (D) two conductors only

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