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Indian Navy AA (Artificer Apprentice) Electromagnetic Induction — practice questions

Explore 1 free Electromagnetic Induction questions in Indian Navy AA (Artificer Apprentice) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electromagnetic Induction questions and exercises with answers

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Inductive reactance increases linearly with frequency. At f = 50 Hz, X_L = 100 Ω. At f = 200 Hz, X_L =Read the answer and worked solution →

Worked practice questions

Inductive reactance increases linearly with frequency. At f = 50 Hz, X_L = 100 Ω. At f = 200 Hz, X_L =

  1. 200 Ω
  2. 100 Ω
  3. 400 Ω (linear in f)
  4. 25 Ω
Show answer and solution

Correct answer: C. 400 Ω (linear in f)

X_L = ωL = 2π f L proportional to f. Doubling f doubles X_L. **So 50 Hz × 4 = 200 Hz means X_L = 100 × 4 = 400 Ω.**

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