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A potentiometer wire is 100cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 5-cm and 10cm from the positive end of the wire in the two cases.The ratio of emfs is
Options
(a) (5:4)
(b) (3:4)
(c) (3:2)
(d) (5:1)
Correct Answer:
(3:2)
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
- An electric current passes through a long straight wire
- Two charges placed in air repel each other by a force of 10⁻⁴ N. When oil is
- The barrier potential of a p-n junction depends on
- One way in which the operation of a n-p-n transistor differs from that of a p-n-p
- The maximum particle velocity in a wave motion is half the wave velocity.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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