Home
Class 12
PHYSICS
In A PO box experiment it is found that ...

In A PO box experiment it is found that for the `100:10` ratio deflection in the galvanometer is to the left by 0.7 division of the scale when resistance I the rheostat are is `978Omega` and to the right by 1.2 division when is `979Omega`. Calculate the unknown resistance.

Text Solution

Verified by Experts

The correct Answer is:
9.7837 `Omega`
Promotional Banner

Topper's Solved these Questions

  • WHEATSTONE BRIDGE, METER BRIDGE

    NN GHOSH|Exercise Exercise|10 Videos

  • TERRESTRIAL MAGNETISM

    NN GHOSH|Exercise All Questions|7 Videos

Similar Questions

Explore conceptually related problems

In a PO box experiment it is found that for the 1000:10 ratio, the deflection is to the left by 2 divisions when R is 437Omega and to the right by 1.3 cm division when R is 436Omega . Compute the correct value of the unknown resistance.

When a moving coil galvanometer is shunted with a resistance of 10 Omega ,the deflection in the galvanometer reduces from 30 divisions to 6 divisions. The resistance of the galvanometer is

In a PO box experiment a student obserfes that he does not get the null point for any of the ratios. But when the ratio is 1000:10 he finds that the deflectioin is to the right by 1 division for 596Omega in the rheostat arm and 0.2 direction to the left when it is 597Omega . Compute the correct value of the unkown resistance from the observations of the student.

The deflection in a galvanometer fulls from 50 divisions to 20 divisions, when a 12Omega shunt is applied. The galvanometer resistance is

The deflection in a galnometer falls from 50 divisions to 20 divisions, when a 12Omega shunt is applied. The galvanometer resistance is

The deflection of galvanometer falls from 60 to 30, when 12 Omega shunt is connected across it. The galvanometer resistance is

The deflection in a moving coil galvanometer falls from 100 divisions to 20 divitation when a shunt of 12 Omega is used. The resistance of the galvanometer coilds is