The length of a wire of a potentiometer is \( 100 \mathrm{~cm} \), and the emf of its standard c... VIDEO
The length of a wire of a potentiometer is \( 100 \mathrm{~cm} \), and the emf of its standard cell is \( E \) volt. It is employed to measure the emf of a battery whose internal resistance is \( 0.5 \mathrm{ohm} \). If the balance point is obtained at \( 30 \mathrm{~cm} \) from the positive end, the emf of the battery ishttps://bit.ly/YTAI_PWAP https://www.pw.live
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