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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.
Related Questions: - A transformer of 100% efficiency has 200 turns in the primary coil and 40000 turns
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A transformer of 100% efficiency has 200 turns in the primary coil and 40000 turns
- Cathode rays are produced when the pressure is of the order of
- An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- Masses of 3 wires of same metal are in the ratio 1:2:3 and their lengths
- A parallel plate condenser has a uniform electric field E(V/m) in the space between
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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