A potentiometer wire of Length `L` and a resistance `r` are connected in series with a battery of e.m.f. `E_(0)` and a resistance `r_(1)`. An unknown e.m.f. `E` is balanced at a length `l` of the potentiometer wire. The e.m.f. `E` will be given by :

A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. E and a resistance r_(1) . An unknown e.m.f. E_(o) is balanced at a length l of the potentiometer wire. The e.m.f. E will be given by

A potentiometer wire of length L and a resistance r are connected in series with a battery of emf E_(0) and resistance 'r_(1)' . An unknown emf E is balanced at a length 'l' of the potentiometer wire. The emf E will be given by

A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. E_0 is balanced at a length l of the potentiometer wire. The e.m.f. E will be given by

AB is a potentiometer wire of length 100 cm and its resistance is 10 Omega . It is connected in series with a battery of emf 2V and resistance 40 Omega . If a source of unknown emf E is balanced by 40 cm length of the potentiometer wire, the value of E is :-

A potentiometer wire of length 4 m and resistance 8 Omega is connected in, series with a battery of e.m.f. 2 V and negligible internal resistance. If the e.m.f. of cell balances against length of 217 cm of the wire, find the e.m.f. of cell. When the cell is shunted by assistance of 15 Omega ,the balancing length is reduced to 200 cm. Find the internal resistance of the cell

The potentiometer wire of resistance R is connected in series with a cell of e.m.f. E and of resistance R_(h) . The current flowing through the potentiometer wire is

A potentiometer wire has a length of 4 and a resistance of 8 ohm. It is connected in series with a cell of e.m.f. 2 V and internal resistance 2 ohm. The potential drop per unit length of the wire is

AB is a potentiometer wire of length 100cm and its resistance is 10ohm. It is connected in series with a resistance R=40 ohm and a battery of e.m.f. wV and negigible internal resistance. If a source of unknown e.m.f. E is balanced by 40cm length of the potentiometer wire, the value of E is:

AB is a potentiometer wire of length 100cm and its resistance is 10ohm. It is connected in series with a resistance R=40 ohm and a battery of e.m.f. wV and negigible internal resistance. If a source of unknown e.m.f. E is balanced by 40cm length of the potentiometer wire, the value of E is:

AB is a potentiometer wire of length 100cm and its resistance is 10ohm. It is connected in series with a resistance R=40 ohm and a battery of e.m.f. wV and negigible internal resistance. If a source of unknown e.m.f. E is balanced by 40cm length of the potentiometer wire, the value of E is: