Electrical engineering material miscellaneous

Electrical engineering material miscellaneous

Easy Questions

Electrical Engineering materials

Electrical engineering material miscellaneous
  1. Capacitors to be used at high frequencies require a material whose loss angle is:








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    Capacitors to be used at high frequencies require a material whose loss angle is low.

    Correct Option: A

    Capacitors to be used at high frequencies require a material whose loss angle is low.

  1. Line insulators are made of:








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    Line insulators are made of porcelain.

    Correct Option: A

    Line insulators are made of porcelain.

  1. Heating in microwave oven is due to:








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    Heating in microwave oven is due to eddy current.

    Correct Option: C

    Heating in microwave oven is due to eddy current.

  1. The junction current in a zero biased PN junction, at equilibrium is:








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    The junction current in a zero biased PN junction, at equilibrium is zero, because no carrier is able to cross the junction barrier.

    Correct Option: D

    The junction current in a zero biased PN junction, at equilibrium is zero, because no carrier is able to cross the junction barrier.

  1. The conduction band in a semiconductor is:








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    The conduction band in a semiconductor is due to the spreading of energies of free electrons.

    Correct Option: A

    The conduction band in a semiconductor is due to the spreading of energies of free electrons.