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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 radioactive substance decays to 1/16th of its initial activity in 40 days.
- In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
- In n-type semiconductor, electrons are majority charge carriers
- In an ammeter, 0.2% of main current passes through the galvanometer
- The distance of a geo-stationary satellite from the centre of the earth is nearest to
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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