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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
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The equiconvex lens has focal length f. If it is cut perpendicular to the principal
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
- The displacement of a particle along the x-axis is given by x = a sin² ?t
- An air core coil and an electric bulb are connected in series with an AC source.
- A satellite is launched into a circular orbit of radius R around earth while
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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