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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 ideal heat engine works between temperature T₁=500 K and T₂=375 K.
- A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support.
- If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity
- A circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane.
- An experiment takes 10 minutes to raise temperature of water from 0⁰C to 100⁰C
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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