A potentiometer wire has a length 10 m and a resistance `20 Omega`. Its terminals are connected to a battery of e.m.f. 4 V and internal resistance `5 Omega`. What are the distances at which null points are obtained when two cells of e.m.f.s 1.5 V and 1.3 V are connected so as to
assist ?

A potentiometer wire has a length 10 m and a resistance 20 Omega . Its terminals are connected to a battery of e.m.f. 4 V and internal resistance 5 Omega . What are the distances at which null points are obtained when two cells of e.m.f.s 1.5 V and 1.3 V are connected so as to oppose each other ?

A potentiometer wire has a length 10 m and resistance 20 ohm.Its terminals are connected to a cell of emf 5 V and internal resistance 5 ohm. What are the distances at which null points are obtained when two cells of emfs 1.5 V and 1.3 V are connected so as to oppose each other

A potentiometer wire of length 10 m and resistance 9 ohm is connected to a battery of e.m.f. 2.1 volt having internal resistance 1.5 Omega . Find the potential gradient along the wire and the balancing length for a cell of e.m.f. 1.08 volt .

A potentiometer wire has a length of 1.5 m and resistance of 10 Omega . It is connected in series with the cell of emf 4 Volt and internal resistance 5 Omega . Calculate thepotential drop per centimeter of the wire.

A potentiometer wire is 10 m long and has a resistance of 2 Omega//"m". It is connected in series with a battery of e.m.f. 3 V and a resistance of 10Omega . The potential gradient along the wire in V/m is

A voltmeter having a resistance of 50 Omega is connected across a cell of e.m.f. 2V and internal resistance 10 Omega . The reading of the voltmeter,

A voltmeter has a resistance of 100 Omega . What will be its reading when it is connected across a cell of emf 2 V and internal resistance 20 Omega ?

A voltmeter has a resistance 30 Omega . What will be its reading, when it is connected across a cell of emf 2 V having internal resistance 10 Omega ?