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ELECTRIC CIRCUITS

Electric Circuits
If emf in a given circuit is given by e = 100 sinω0t, then maximum value of voltage and frequency will be

 100 V, 50 Hz.
 100√2 V, 100 Hz.
 50√2 V, 100 Hz.
 100 V, 100 Hz.

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Electric Circuits
The value of supply voltage for 400 W, 4 Ω load is

 40 V.
 200 V.
 20 V.
 400 V.

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Electric Circuits
Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ?

  - 50 V.
 50 V.
  none of above.
  30 V.

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Electric Circuits
The rms value of the voltage U(t)= 3 + 4cos(3t)

 {3 + 2(1.141)} V.
  5 V.
  4.123 V.
 7 V.

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Electric Circuits
In the figure, the potential difference between points P and Q is

 - 6 V.
 10 V.
 6 V.
 12 V.

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