For a post office box, the graph of galvanometer deflection verus (R ) (resistance pulled out of resistance box) for the ratio `100.1 ` is given as shown. Find the value of unknown resistance.
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For a post office box, the graph of galvanometer deflection versus (R ) (resistance pulled out of resistance box) for the ratio 100:1 is given as shown. Find the value of unknown resistance. .

In a meter bridge, the value of resistance in the resistance box is 10Omega . The balancing length is l_(1)=55 cm . Find the value of dunknown resistance.

A certain unknown resistance is connected in the left gap and a resistance box in the right gap of a metre bridge. By introducing a resistance of 10 Omega with the help of resistance box, the balance point is determined. If the balance point shift by 20 cm on increasing the resistance from the resistance box by 12.5 Omega Find the value of unknown resistance.

For the network of resistance shown in the figure the equivalent resistance of the network between the points A and B is 18 ohm. The value of unknown resistance R is :

For the network of resistance shown in the figure the equivalent resistance of the network between the points A and B is 18 ohm. The value of unknown resistance R is :

For the network of resistance shown in the figure the equivalent resistance of the network between the points A and B is 18 ohm. The value of unknown resistance R is :

If the deflection of galvanometer in Wheatstone circuit is zero, the value of resistance will be