A 40 μF capacitor is connected to a 200 V , 50 Hz ac supply. The rms value of the current in the circuit is, nearly: - Physics MCQ NEET 2020 E1 2026 | ExamTest.live

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A 40 μ F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in the circuit is, nearly:

Solution & Step-by-step Explanation

The capacitive reactance X_{C} is: X_{C} = \frac{1}{2 π f C} = \frac{1}{2 \times 3.14 \times 50 \times 40 \times 1 0 ^{- 6}} X_{C} = \frac{1}{314 \times 40 \times 1 0 ^{- 6}} \approx 79.6 Ω The rms current I_{r m s} is: I_{r m s} = \frac{V _{r m s}}{X _{C}} = \frac{200}{79.6} \approx 2.51 A The nearest option is 2.5 A .

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A 40 μ F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in the circuit is, nearly:

1.7 A

2.05 A

2.5 A

25.1 A

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