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Electric Circuits

Electric Circuits
For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is

 16.
 1.
 1/4.
 4.

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Electric Circuits
Select the wave that has the least value of form factor.

 Sine wave.
 Square wave.
 Rectangular wave.
 Triangular wave.

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Electric Circuits
Time constant of RL series circuit is

 L/R
 2RC
 RC
 2L/R

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Electric Circuits
Inductor does not allow the sudden change of

None of these
 voltage
 power
 current

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Electric Circuits
Which of the following has positive temperature coefficient ?

  Gold.
  Germanium.
  Rubber.
  Paper.

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Electric Circuits
Which of the following elements is/are called dynamic element/s?

 Both L and C.
 L.
 R.
 C.

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