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Physics · PYQ NEET UG 2020
हिन्दीA \( 40\ \mu\text{F} \) capacitor is connected to a \( 200\text{ V} \), \( 50\text{ Hz} \) ac supply. The rms value of the current in the circuit is, nearly:
Correct answer · Option 2
2.5 A
Explanation
Capacitive reactance \( X_c = \frac{1}{2\pi f C} = \frac{1}{2 \times \pi \times 50 \times 40 \times 10^{-6}} = 79.6\ \Omega \). Rms current \( I_{\text{rms}} = \frac{V}{X_c} = \frac{200}{79.6} \approx 2.51\text{ A} \).
