Electromagnetic Field MCQs with answers Page - 8

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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Q. Which of the following is not an inductor?

  • (A) toroid
  • (B) transmission line
  • (C) solenoid
  • (D) none of these

A

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Q. Magnetic field at any point inside a long solenoid is _________.

  • (A) zero
  • (B) infinity
  • (C) constant
  • (D) none of these

A

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Q. A toroid is _________ solenoid.

  • (A) a long
  • (B) a small
  • (C) not a
  • (D) none of these

A

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Q. For a medium to be a quasi-conductor, the dissipation factor should be _________.

  • (A) infinity
  • (B) zero
  • (C) unity
  • (D) none of these

A

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Q. Loss tangent is the same as _________.

  • (A) mutual inductance
  • (B) resistivity
  • (C) conductivity
  • (D) dissipation factor

A

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Q. Loss tangent is given as _________.

  • (A) σ/ωε
  • (B) ω/σε
  • (C) ωε/σ
  • (D) σε/ω

A

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Q. Loss tangent approximates _________.

  • (A) attenuation constant
  • (B) phase constant
  • (C) intrinsic impedance
  • (D) all of these

A

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Q. The combined effect of electric dipoles is seen in _________.

  • (A) polarization
  • (B) magnetization
  • (C) both (a) and (b)
  • (D) none of these

A

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Q. The combined effect of magnetic dipoles is seen in _________.

  • (A) polarization
  • (B) magnetization
  • (C) both (a) and (b)
  • (D) none of these

A

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Q. Permeability of vacuum is given as _________.

  • (A) 4 × 10−7 H/m
  • (B) 14 × 10−7 H/m
  • (C) 4 × 10−9 H/m
  • (D) 14 × 10−9 H/m

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