When 6 identical cells of no internal resistance are connected in series in the secondary cicuit of a potentio meter, the balancing length is `l` balancing length becomes `(l)/(3)` when some cells are connected wrongly, the number of cell connected wrongly are

When 6 identical cells of no internal resistance are connected in series in the secondary circuit of a potential meter, the balancing length is /, balancing length becomes l/3 when some cells are connected wrongly, the number of cells connected wrongly are

Then 6 identical calls of no internal resistance are connected in series in the second arycircuit of a potentiometer, the balancing length is l if two of them are wrongly connected to balacing length becomes

When a Daniel cell is connected in the secondary circuit of a potentiometer, the balancing length is found to be 540 cm. If the balancing length becomes 500 cm. When the cell is short-circuited with 1Omega , the internal resistance of the cell is

When two cells of e.m.f. 1.5 V and 1.1 V connected in series are balanced on a potentiometer, the balancing length is 260 cm. The balancing length, when they are connected in opposition is (in cm)

Cell of emf 1 V is connected across a potentiometer, balancing length is 600 cm. What will be the balancing length for 25 V?

A cell of emf E and internal resistance r connected in the secondary gets balanced against length l of potentiometer wire. If a resistance R is connected in parallel with the cell, then the new balancing length for the cell will be

When a conducting wire is connected in the right gap and known resistance in the left gap, the balancing length is 60 cm. the balancing length becomes 42.4 cm when the wire is stretched so that its length increases by

The emf of a cell is Ev , and its its internal resistance is 1Omega . A resistance of 4Omega is joined to battery in parallel. This is connected in secondary circuit of potentiometer. The balancing length is 160 cm. If 1 V cell balances for 100 cm of potentiometer wire, the emf of cell E is

There are N identical cells of emf E and internal resistance r connected in series with each other. But n cells are connected with reverse polarity and n lt N//2 . Effective emf and internal resistance of this combination are