Home
Class 12
PHYSICS
36. A potentiometer circuit is set up as...

36. A potentiometer circuit is set up as shown. The potential gradient, across the potentiometer wire, is k volt/cm and the ammeter, present in the circuit, reads 1.0 A when two way key is switched off. The balance points, when the key between the terminals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lengths 1 cm and lacm respectively. The magnitudes, of the resistors R and X, in ohms, are then, equal, respectively, to (a) kl, and klz (c) kl, and kilz -) (b) kllz -1) and kl 2 fd) kllz – 14 )and kly

Promotional Banner

Similar Questions

Explore conceptually related problems

A potentiometer circuit is setup as shown. The potential gradient across the potentiometer wire is k "volt"//cm and the ammeter present in the circuit reads. 1.0 A When two-way key is switched off. The balance point, when the key between the terminals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lengths l_(2) cm and l_(2) cm respectively. The magnitudes, of the resistors R and X , in ohm, are then, equal, respectively, to

A potentiometer circuit is setup as shown. The potential gradient across the potentiometer wire is k "volt"//cm and the ammeter present in the circuit reads. 1.0 A When two-way key is switched off. The balance point, when the key between the terminals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lengths l_(2) cm and l_(2) cm respectively. The magnitudes, of the resistors R and X , in ohm, are then, equal, respectively, to

A potentiometer circuit is setup as shown. The potentail gradient across the potentiometer wire is k "volt"//cm and the ammeter present in the circuit reads. 1.0 A When two-way key is switched off. The balance point, when the key between the termainals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lenghts l_(2) cm and l_(2) cm respectively. The magnigutes, of the resistors R and X , in ohm, are then, equal, respectively, to

In given potentiometer circuit 1.02 V is balanced at 5.1cm from A. Find potential gradient of potentiometer wire AB:

In given potentiometer circuit 1.02 Volt is balanced at 51cm from A. Find potential gradient of potentiometer wire AB:

A potentiometer PQ is set up to comapre two resistances as shown in the figure. The ammeter A in the circuit reads 1.0 A when two way key K_(3) is open. The balance point is at a length l_(1) cm from P when two way key K_(3) is plugged in between 2 and 1, while the balance point is at a length l_(2) cm from P when key K_(3) is plugged in between 3 and 1. The ratio of the two resistance (R_(1))/(R_(2)) , is found to be-

A potentiometer PQ is set up to comapre two resistances as shown in the figure. The ammeter A in the circuit reads 1.0 A when two way key K_(3) is open. The balance point is at a length l_(1) cm from P when two way key K_(3) is plugged in between 2 and 1, while the balance point is at a length l_(2) cm from P when key K_(3) is plugged in between 3 and 1. The ratio of the two resistance (R_(1))/(R_(2)) , is found to be-

A potentiometer PQ is set up to comapre two resistances as shown in the figure. The ammeter A in the circuit reads 1.0 A when two way key K_(3) is open. The balance point is at a length l_(2) cm from P when two way key K_(3) is plugged in between 2 and 1, while the balance point is at a length l_(2) cm from P when key K_(3) is plugged in between 3 and 1. The ratio of the two resistance (R_(1))/(R_(2)) , is found to be-

The balancing length of a potentiometer wire is 220cm when a cell of emf 1.1v is used in the secondary circuit.If it is replaced by a cell of emf 2.5v the balancing length becomes

A length of potentiometer wire of 155 cm balances the emf of a cell in a circuit and a length of 135 cm when the cell has a conductor of resistance 8Omega connected between its terminals . Find the internal resistance of the cell .