The emf of a standard cell is 1.5 volt and its balancing length is 7.5 m. The balancing length in meters for a 3.5 ohm resistance, through which a current of 0.2 A, flows will be

In figure, AB is a potentiometer wire, length 10 m and resistance 2 Omega with open the balancing length is 5.5 m. However, on closing key K the balancing length reduces to 5 m. The initial resistance of the cell E_(1) is

The potential gradient of potentiometer is 0.2 "volt"//m . A current of 0.1 amp is flowing throgh a coil of 2 ohm resistance. The balancing length in meters for the potential difference at the ends of this coil will be

The potential gradient of potentiometer is 0.2 "volt"//m . A current of 0.1 amp is flowing throgh a coil of 2 ohm resistance. The balancing length in meters for the potential difference at the ends of this coil will be

In a experiment for callibration of voltmeter a standard cell of emf 1.5 V is balanced at 300 cm length of potentiometer wire. The P.D across a resistance in the circuit is balanced at 1.25 m. If a voltmeter is connected across the same resistance it reads 0.65 V. The error in the volt meter is

In a experiment for calibration of voltmeter a standard cell of emf 1.5 V is balanced at 300 cm length of potentiometer wire. The P.D across a resistance in the circuit is balancedat 1.25 m. if a voltmeter is connected across the same resistance it reads 0.65 V. the error in the volt meter is

The length of the potentiometer wire is 600 cm and a current of 40 mA is flowing in it. When a cell of emf 2 V and internal resistance 10Omega is balanced on this potentiometer the balance length is found to be 500 cm. The resistance of potentiometer wire will be

The length of the potentiometer wire is 600 cm and a current of 40 mA is flowing in it. When a cell of emf 2 V and internal resistance 10Omega is balanced on this potentiometer the balance length is found to be 500 cm. The resistance of potentiometer wire will be

In an experiment for calibration of voltmeter, a standard cell of emf 1.5V is balanced at 300cm length of potentiometer wire. The P.D across a resistance in the circuit is balancedat 1.25m. If a voltmeter is connected across the same resistance. It reads 0.65V. The errorin the volt meter is

In an experiment for calibration of voltmeter, a standard cell of emf 1.5V is balanced at 300cm length of potentiometer wire. The P.D across a resistance in the circuit is balancedat 1.25m. If a voltmeter is connected across the same resistance. It reads 0.65V. The errorin the volt meter is

When two cells of e.m.f. 1.5 V and 1.1 V connected in series are balanced on a potentiometer, the balancing length is 260 cm. The balancing length, when they are connected in opposition is (in cm)