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04
Jun

Electromagnetic Induction & Alternating Current Test16

Written by Administrator on 04 June 2013.

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Quick View of Questions:

  1. In the expression e = - d/dt (Nf) the negative sign is the consequence of _____.
  2. In an ideal transformer _____.
  3. In a capacitance circuit the expression for voltage is e = Eo sin wt, then the expression for current is _____.
  4. The motion of the coil in a galvanometer is damped because of the _____.
  5. The unit henry can also be written as _____.
  6. In an LCR circuit when XL > XC the expression for current is I = Io sin (wt - f) then the expression for emf is _____.
  7. In AC generator the direction of the current _____.
  8. Whenever the number of magnetic lines of force linked with a moving conductor changes an emf is induced. This phenomenon is known as _____.
  9. A rectangular loop of area 0.06 m2 is placed in a magnetic field of 0.3 T. The flux linked when the plane is normal to the field and parallel to the field are _____.
  10. Flux leakage in a transformer can be minimised by _____.

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