Home
Class 12
PHYSICS
In potentiometer experiment, when the g...

In potentiometer experiment, when the galvanometer shows no deflection, then no current flows in

A

potentiometer wire

B

galvanometer circuit

C

main circuit

D

battery

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Choose the correct option. If the pointer of the voltmeter shows reading of 0.2 V when no curent flows in the circuit, the error in voltmeter is

In potentiometer experiment, if l_1 is the balancing length for emf of cell of internal resistance r and l_2 is the balancing length for its terminal potential difference when shunted with resistance R then

In a potentiometer experiment, it is found that no current passes through the galvanometer when the terminals of the cell are connected across 52 cm of the potentiometer wire. If the cell is shunted by a resistance of 5 Omega the balance point is found at 40 cm of the wire from the same end. The internal resistance of the cell is

In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52 m of the potentiometer wire. If the cell is shunted by a resistance of 5Omega balance is obtained when the cell connected across 0.4m of the wire. Find the internal resistance of the cell.

In the arrangement shown in figure,there are two coils wound on a non-conducting cylinderical rod.Initially the key is not inserted.Then the key in inserted and later removes.Then, A. The galvanometer will not deflect B. The galvanometer will deflect in one direction when the key is inserted and in the opposite direction when the keys removed C. The galvanometer will deflect in one direction when the key is inserted and remain still when the key is removed . D. The galvanometer will deflect in one direction when the key is inserted and in the same direction when the key is removed .

In a potentiometer experiment, e.m.f. of a cell is balanced by a length of 150 cm on the potentiometer wire. When the cell is shunted by a 10 Omega resistance, the balancing length reduces to 90 cm. What is the internal resistance of the cell?

A galvanometer has a resistance of 16Omega . It shows full scale deflection when a current of 20mA is passed through it. The only shunt resistance available is 0.06W which is not appropriate to convert galvanometer into ammeters. How much resistance should be connected in series with the coil of galvanometer so that the range of ammeter is 8A?

In potentiometer experiment, a cell is balanced by length 120 cm. When a cell is shunted by resistance of 5Omega , the balancing length is 80 cm. The internal resistance of cell is

Explain the construction and working of a moving coil galvanometer. Hence, show that a current flowing through it is directly proportional to the deflection.

When a balance point is obtained in a potentiometer for finding the internal resistance of a cell, the current through the potentiometer wire is due to