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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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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a ball is thrown up vertically with velocity vₒ,it reaches a maximum height
- An aicraft executes a horizontal loop of radius 1 km with a speed of 900 kmh⁻¹
- Two coils of self inductance 2 mH and 8 mH are placed so close together
- The total kinetic energy of a body of mass 10 kg and radius 0.5 m moving with a velocity
- The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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