In the meter bridge shown in the above figure, the null point is found at a distance 33.7 cm from A and of the wire for particular values of R and S. If a resistance of `12Omega` is connected parallel with S, the null point is found to be at 48.1 cm from B end. Determine the value of R and S.

In a potentiometer experiment, it is found that no current passes through the galvanometer, when the terminals of a cell are connected across 50 cm of the potentiometer wire. If the cell is shunted by a resistance of 5 ohm, the balance point is found at 40 cm of the wire from the same end. Find the internal resistance of the cell.

In a meter bridge the resistance R and x, R being less than x. A balance point is obtained 40 cm from zero and on shunting the coil by 50Omega the balance point moves through 10cm. Calculate the value of R and x.

In a metre bridge, the balancing length from the left end is 20 cm. The resistance in the right gap is 1 Omega . The value of the unknown resistance is

A particle moving along a straight line is at a distance S from a point O on the line in time t, where S = t^3-6t^2+8t+5 Find the velocity when the acceleration is 12 cm//sec^2