Ex. 68 : The length of potentiometer wire is 4 m and its resistance is 18 2. A battery if e.m.f. 2 V and internal resistance 2 Nis connected across the wire. Calculate the potential gradient. If the balancing length for a cell of e.m.f. E1 200 cm, calculate E1

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Q: Plz do it

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Q: The length of potentiometer wire is 4 m and its resistance is 18 2. A battery if e.m.f. 2 V and…

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Q: Ex. 9: A voltmeter has a resistance of 100 2. What will be its reading when it is connected across a…

A: To find- Potential difference (V)=? Given- Resistance of voltmeter (R)=100 ohm E.m.f. of a cell…