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Consumer Electronics by S. P. Bali

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Multiple Choice Questions

  1. Moving iron headphones work on the principle of
    1. magnetic attraction
    2. magnetic repulsion
    3. both (a) and (b)
  2. Moving iron headphones suffer from
    1. natural resonance
    2. high harmonic distortion
    3. non-linear distortion
    4. none of these
  3. The drivers of dynamic headphones can be expected to produce
    1. ample sound pressure level
    2. insufficient sound pressure level
  4. Electrostatic headphones
    1. suffer from system resonance
    2. are free from system resonance
  5. Which one of the following suffers from high harmonic distortion
    1. moving iron headphones
    2. moving coil headphones
    3. electrostatic headphones
    4. crystal headphones
  6. Which one of the following headphones needs polarizing voltage
    1. moving coil
    2. electrostatic
    3. moving iron
    4. crystal

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