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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 moment of inertia of a rod about an axis through its centre and perpendicular
- An aicraft executes a horizontal loop of radius 1 km with a speed of 900 kmh⁻¹
- A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N
- IF A⃗ and B⃗ are two vectors and θ is the angle between them
- At a given temperature the root mean square velocities of oxygen and hydrogen
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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