Given below are two statements: Statement I : An AC circuit undergoes electrical resonance if it contains either a capacitor or an inductor. Statement II: An AC circuit containing a pure capacitor or

Question

Given below are two statements:

Statement I : An AC circuit undergoes electrical resonance if it contains either a capacitor or an inductor.

Statement II: An AC circuit containing a pure capacitor or a pure inductor consumes high power due to its non-zero power factor. In the light of above statements, choose the correct answer from the options given below:

TestHub · Accepted Answer

For resonance to occur the condition is $X_{L} = X_{C}$ .
So, both inductor and capacitor is required.
The power factor is given by $\cos ϕ$ .
For an inductor the power factor is zero-lagging, $\cos 90 ° = 0$ . The angle between the voltage and current is $90 °$ .
For a capacitor the power factor is zero-leading.
Hence, both statements are false.

Physics - EMI/AC Question with Solution | TestHub

Options:

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