Q. 5. A potentiometer wire of length 1 m has a resistance 10 Q2. It is connected to 6 V battery in series with a resistance of 5 2. Determine the emf of the primary cell which gives a balance point at A 40 cm.
Q. 5. A potentiometer wire of length 1 m has a resistance 10 Q2. It is connected to 6 V battery in series with a resistance of 5 2. Determine the emf of the primary cell which gives a balance point at A 40 cm.
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Transcribed Image Text:Q. 5. A potentiometer wire of length 1 m has a
resistance 10 2. It is connected to 6 V battery in
series with a resistance of 5 2. Determine the emf
of the primary cell which gives a balance point at
A
40 cm.
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