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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
- The horizontal range and maximum height of a projectile are equal.The angle of projection
- Eight drops of a liquid of density ρ and each of radius a are falling through air
- Consider a compound slab consisting of two different materials having equal thickness
- Two spherical conductors A and B of radii 1 mm and 2 mm are separated by a distance
- A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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