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In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series and in conjunction and the balancing length is found to be 58 cm of the wire. If the polarity of E₂ is reversed, then the balancing length becomes 29 cm. The ratio of e.m.f. of the two cells E₁/E₂ is
Options
(a) (1:1)
(b) (2:1)
(c) (3:1)
(d) (4:1)
Correct Answer:
(3:1)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A long straight wire carrying current of 30A is placed in an external uniform
- In the adiabatic compression, the decrease in volume associated with
- A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y = 5t
- An electron moving in a circular orbit of radius r makes n rotations per second.
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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