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A resistance of 20 ohm is connected to a source of an alternating potential V=220 sin (100 πt). The time taken by the current to change from its peak value to r.m.s value is
Options
(a) 2.5 x 10⁻³ sec
(b) 0.25 sec
(c) 25 x 10⁻³ sec
(d) 2.5 sec
Correct Answer:
2.5 x 10⁻³ sec
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- According to Hook’s law of elasticity, if stress is increased, the ratio of stress
- The electric vector vibration of an electromagnetic wave is given by
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- 24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
- If the earth shrink such that its mass does not change but radius decreases to one
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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