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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 short circuited coil is placed in a magnetic field varying with time. Electrical
- A 6 volt battery is connected to the terminals of a three metre long wire of uniform
- A block is moving up an inclined plane of inclination 60° with velocity of 20 ms⁻¹
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
- When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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