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CBSE Class 12-science Answered

what is meant by wattless current?
Asked by sruthisreenivasan | 24 Feb, 2011, 01:50: AM
Expert Answer
Dear student

The current which does not dissipates any energy is called wattless current. In an AC circuit, the capacitor and inductor oppose the change in current , but do not dissipate it. Instead, they store the energy in form of electric and magnetic field respectively. At the time of resonance, the potential difference across capacitor-inductor is zero. The current flowing at this time is called wattless current. For the same reason, capacitor and inductor are also called wattless components.

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