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An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is
Options
(a) 210 V
(b) 211 V
(c) 311 V
(d) 320 V
Correct Answer:
311 V
Explanation:
Measurement of A.C voltage gives the rms values.
V(rms) = 220 V
Peak value Vm = V(rms) √2 = √2 (220 V) = 311 V.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A small oil drop of mass 10⁻⁶kg is hanging in at rest between two plates seperated
- If a small sphere is let fall vertically in a large quantity of still liquid of density
- A person wants a real image of his own, 3 times enlarged. Where should he stand
- On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck
- The displacement of a particle along the x-axis is given by x = a sin² ?t
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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