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04
Jun

Electromagnetic Induction & Alternating Current Test17

Written by Administrator on 04 June 2013.

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Quick View of Questions:

  1. Number of magnetic lines passing per unit area through a surface normal to the lines is called as _____.
  2. In a circuit containing inductor only _____.
  3. Energy stored in an inductor is _____.
  4. If I2 is the mean square current in one cycle, then the power dissipated as heat in a resistor R for one cycle is _____.
  5. The unit of self-inductance is _____.
  6. A coil of 50 turns and area of cross - section of 0.1 m2 has its plane parallel to a magnetic induction of 0.9 Wb/m2, then the flux passing the coil is _____.
  7. The equation of a 25 cycle current sin wave having rms value of 30 A is _____.
  8. The formula to calculate the resonant frequency in an LCR is _____.
  9. Slots are made in metal plate that swings between the poles of a magnet _____.
  10. At resonance VL and VC are _____.

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