A 4 m long wire of resistance `8Omega` is connected in series with a battery of emf 2V and a resistor of `7Omega`. The internal resistance of the battery is `1Omega`. What is the potential gradient along the wire ?

A 10 m long wire of resistance 20Omega is connected in series with a battery of emf 3V and a resistance of 10Omega . The potential gradient along the wire in volt per metre is

A 10 m long wire of resistance 20 Omega is connected in series with a battery of e.m.f. 3V (negligible iuternal resistance) and a resistance of 10 Omega . Find the potential gradient along the wire.

A potentiometer wire, 4 m long and resistance 10 Omega , is connected in series with a resistance of 1988 Omega and a cell of emf 2V and internal resistance 2Omega . What is the potential gradient along the wire?

A 10 m long wire ofresistance 20 Omega is connected in series with battery of EMF 3V and negligible internal resistance and a resistance of 10 Omega . The potential gradient along the wire is :

A 10 m long wire of resistance 15 ohm is connectd in series with a battery of emf 2V (no internal resistance) and a resistance of 5 ohm. The potential gradient along the wire is

A potentiometer wire of length 10 m and resistance 30 Omega is connected in series with a battery of emf 2.5 V , internal resistance 5 Omega and an external resistance R . If the fall of potential along the potentiometer wire is 50 mu V mm^(-1) , then the value of R is found to be 23 n Omega . What is n ?

A potentiometer wire of length 10 m and resistance 30 Omega is connected in series with a battery of emf 2.5 V , internal resistance 5 Omega and an external resistance R . If the fall of potential along the potentiometer wire is 50 mu V mm^(-1) , then the value of R is found to be 23 n Omega . What is n ?

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