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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
- Light of wavelength λᴀ and λᴃ falls on two identical metal plates A and B respectively.
- Charge passing through a conductor of cross-section area A=0.3 m² is given
- If sound wave travel from air to water, which of the following remains unchanged?
- A particle moves in a circle of radius 5 cm with constant speed and time period
- A spring balance is attached to the ceiling of a lift.A man hangs his bag on the spring
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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