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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
- If a solid ball of metal has a concentric spherical cavity with in it if the ball
- A ship A is moving westwards with a speed of 10 km/h and a ship B 100 km
- A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- A parallel plate capacitor as a uniform electric field E in the space between the plates
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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