AB is `1` meter long uniform wire of `10 Omega` resistance. Other data are shown in the diagram. Calculate (i) potential gradient along `AB` (ii) length `AO` when galvanometer shown deflection

In Fig. 6.16 , AB is a 1 m long uniform wire of 10 Omega resistance. Other data are shows in the figure. Calculate (i) potential gradient along AB and (ii) length of AO when galvanometer shows no deflection.

In the circuit shown, the length of AB is 100 cm. The length j_1 for which the galvanometer shows zero deflection is __________ cm.

(i) State the principle of working of a potentiometer. (ii) In the following potentiometer circuit AB is a uniform wire of length 1 m and resistance 10Omega Calculate the potential gradient along the wire and balance length AO (=l)

A uniform wire AB of length 1 m, an unknown resistance X and a resistance of 12 Omega are connected to a battery and a galvanometer G as shown in the figure. The galvanometer shows no deflection when AJ=60 cm. What is the value of X (in ohm) ?

The potentiometer wire AB shown in figure is 40 cm long. Where the free end of the galvanometer should be connected on AB so that the galvanometer may show zero deflection?

The potentiometer wire AB shown in figure is 40 cm long. Where should the free end of the galvanometer be connected on AB so that the galvanometer may show zero deflection?

A 10 meter long wire of uniform cross section of 20 Omega resistance is used as a potentiometer wire. This wire is connected in series with a battery of 5V along with an external resistance of 480 Omega if an unknown emf epsilon is balanced at 600 cm of this wire , calculate (i) the potential gradient of the potentiometer wire and (ii) the value of the unknown emf epsilon .