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Alternating Current question

2016 · Q125
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Alternating Current question

2016 · Q125

NEETPhysicsAlternating CurrentMCQ+4 / −1
A small signal voltage V(t) = V0 sinω\omegaωt is applied across an ideal capacitor C
  1. A
    Current I(t)I(t)I(t) is in phase with voltage V(t)V(t)V(t).
  2. B
    Current I(t)I(t)I(t) leads voltage V(t) by 180o
  3. C
    Current I(t)I(t)I(t), legs voltage V(t)V(t)V(t) by 90o.
  4. D
    Over a full cycle the capacitor C foes not consume any energy from the voltage source.
View written solutionFree

Correct answer: D

In ideal capacitor, I leads from voltage by 90o and capacitor does not consume energy.

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