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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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- A uniform force of (3i + j) newton acfs on a particle of mass 2kg
- Two particles are oscillating along the same line with the same frequency
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.
- A uniform force of (3i + j) newton acfs on a particle of mass 2kg
- Two particles are oscillating along the same line with the same frequency
- The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become
- A heavy small sized sphere is suspended by a string of length l.The sphere rotates
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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