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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: - In which of the following heat loss is primarily not due to convection?
- A resistance of 20 ohm is connected to a source of an alternating potential V
- A heavy stone hanging from a massless string of length 15 m is projected
- When a mass m is attached to a spring, it normally extends by 0.2 m.
- Work done by an external agent in separating the parallel plate capacitor is
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which of the following heat loss is primarily not due to convection?
- A resistance of 20 ohm is connected to a source of an alternating potential V
- A heavy stone hanging from a massless string of length 15 m is projected
- When a mass m is attached to a spring, it normally extends by 0.2 m.
- Work done by an external agent in separating the parallel plate capacitor is
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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