If potential gradient on wire `PQ` is `0.01 V//m` then the reading of voltmeter is :

If potential gradient of a wire decreases, then its length

A potentiometer wire 10m long has a resistance of 40Omega . It is connected in series with a resistances box and a 2 v storage cell. If the potential gradient along the wire is 0.01(V)/(m) the resistance unplugged in the box is

A potentiometer wire 10 long has a resistance of 40Omega . It is connected in series with a resistances box and a 2 v storage cell. If the potential gradient along the wire is 0.01(V)/(m) the resistance unplugged in the box is

A battery of emf 26V and internal resistance 0.4 ohm is connected to a resistance of 10ohm and a potentiometer wire of length 10m. What is the potential gradient on the wire if the resistance of the potentiometer wire is 5 ohm –

In the experiment of calibration of voltmeter, a standard cell of e.m.f. 1.1 Volt is balanced against 440 cm of potentiometer wire. The potential difference across the ends of a resistance is found to balance against 220 cm of the wire. The corresponding reading of voltmeter is 0.5 volt. The error in the reading of voltmeter will be

In the experiment of calibration of voltmeter, a standard cell of emf 11 V is balanced against 440 cm of potentiometer wire. The potentail difference across the ends of a resistance is found to balance aginst 220 cm of the wire. The corresponding reading of the voltmeter is 0.5 V . Find theerror in the reading of voltmeter.

In the experiment of calibration of voltmeter, a standard cell of emf 1.1 V is balanced against 440 cm of potentiometer wire. The potentail difference across the ends of a resistance is found to balance aginst 220 cm of the wire. The corresponding reading of the voltmeter is 0.5 V . Find theerror in the reading of voltmeter.