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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 solid sphere, a hollow sphere and a ring are released from top of an inclined
- The speed of electromagnetic waves in vaccum is equal to
- The value of Poisson’s ratio lies between
- A galvanometer of resistance 50Ω is connected to a battery of 3 V along with a resistance
- The ionisation energy of hydrogen is 13.6 eV. The energy of the photon released
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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