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Introduction to Transistor

A variable fr...

Question

A variable frequency AC source is connected to a capacitor. Will the displacement current increases or decreases with increase in frequency.

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Solution

Due to the increase in frequency, impedance of the capacitor is decreased and there is a consequent increase in the current which equals displacement current between the plates.

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Assertion

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When a variable frequency

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source is connected to a capacitor, displacement current increases with increases in frequency.

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As frequency increases, conduction current also increases.

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