With a resistance `R_1` in the left gap and a resistance `R_2` in the right gap of a meterbridge, the null point is obtained at a distance of 70cm from the left end, when `R_1` is reduced by `2Omega` and `R_2` is increased by `2Omega`, the null point is obtained at 30cm from left end. Find the values of resistance `R_1` and `R_2`.

In a meter-bridge experiment with a resistance R_(1) in left gap and a resistance X in a right gap. null point is obtained at 40 cm from the left emf. With a resistance R_(2) in the left gap, the null point is obtainned at 50 cm from left hand. Find the position of the left gap is containing R_(1) and R_(2) (i) in series and (ii) in parallel.

The unknown resistance is placed in a left gap and a resistance of 50 Omega in right gap of meter bridge. The null point is obtained at 60 cm from the right gap. Determine the unknown resistance.

With an unknown resistance X in the left gap and a resistance of 30 Omega in the right gap of meter bridge . The null point is obtained at 40 cm from the left end of the wire . Find i) the unknown resistance and ii)the shift in the position of the null point , when the resistances in both the gaps are increased by 15 Omega .

With an unknown resistance X in the left gap and a resistance of 30 Omega in the right gap of meter bridge . The null point is obtained at 40 cm from the left end of the wire . Find i) the unknown resistance and ii)the shift in the position of the null point , when the resistance in each gap is shunted by a resistance of 8 Omega .

The balance point is obtained at 40 cm from left end in meter bridge. Then the ratio of resistance in the gap is

A coil of unknown resistance is placed in the left gap of a metre bridge and a resistance R is placed in the right gap. The null point is obtained at a distance of 40 cm from the left end. When a resistance of 10 ohm is connected in series with the coil and the same resistance R is kept in the right gap,the null point is obtained at the centre of wire. Find the resistance of the coil.

Two unknown resistances are connected in two gaps of a meter-bridge. The null point is obtained at 40 cm from left end. A 30Omega resistance is connected in series with the smaller of the two resistances, the null point shifts by 20 cm to the right end. The value of smaller resistance in Omega is

Two unknown resistrance X and Y are connected to left and right gaps of a meter bridge and the balancing point is obtained at 80 cm from left. When a 10Ω resistance is connected in parallel to x, the balance point is 50 cm from left. The values of X and Y respectively are

With resistances P and Q in the left and the right gap respectively of a metre bridge, the null point divides the wire in the ratio 3:4 . When P andQ are increased by 20 Omega each,the null point divides the wire in the ratio 5:6 . The values of P and Q are

Two resistance x and y in the two gaps of a meter bridge give a null point dividing the wire in the ratio 2:3 . If each resistance is increased by 30Omega ,the null point divides the wire in the ratio 5:6 . calculate each resistance.