Discussion
The capacity of a pure capacitor is 1 farad. In D.C circuit, its effective resistance will be
Answer: B
Its effective resistance in a DC circuit is infinite.
Capacitive reactance is \[X_C = \frac{1}{2\pi f C}\] and for direct current \(f = 0\), so \(X_C \rightarrow \infty\). Once the capacitor is charged no further current flows - a capacitor blocks DC and passes AC.
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