The find resistance of galvanometer by Kelvin's method using metre bridge, the null point is observed in such a way that

To find resistance of galvanometer by Kelvin's method by metre bridge, usually galvanometer is connected

To find resistance of galvanometer by Kelvin's method by metre bridge , usually galvanometre is connected

An unknown resistance 'X' is placed in the left gap and and a known resistance of 60Omega is plaecd in the right gap of metre bridge. The null point is obtained at 40 cm from the left end fo the bridge. Fid 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 resistance in each gap is shunted by a resistance of 8 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 resistances in both the gaps are increased by 15 Omega .

For the accurate measurement of resistance by metre bridge , the null point should be obtained

For the accurate measurement of resistance by metre bridge, the null point should be obtained

If the resistance X and Y (XltY) be placed in the two gaps of a metre bridge , null point is obtained at a length of 20cm . Keeping Y unchanged if a resistance 4X is placed in place of X what will be the position of the null point ?