Electric Circuits
The switch S is the circuit shown in figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is

 1 mA.
  0.25 mA.
 0.5 mA.
 0.35 mA.

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Electric Circuits
What is time period T?

 Time taken by an alternating quantity to complete the (+)ve half.
 Time taken by an alternating quantity to complete the (-)ve half.
 Time taken by an alternating quantity to reach the peak value.
 Time taken by an alternating quantity to complete one full cycle.

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