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An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor of capacitance 2 μF. The impedence of the circuit is
Options
(a) π/5000
(b) 1000/π
(c) 500π
(d) 5000/π
Correct Answer:
5000/π
Explanation:
Impedance of a capacitor is Xc = 1 / ωC
Xc = 1 / 2πfC = 1 / (2π × 50 × 2 × 10⁻⁶) = 5000 / π
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The resistances of the four arms P,Q,R and S in a Wheatstone’s bridge
- Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively
- The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
- A DC ammeter has resistance 0.1Ω and its current ranges 0-100A. If the range
- A fluid is in streamline flow across a horizontal pipe of variable area of cross section
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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