Home
Class 12
PHYSICS
When a potential difference of 3 V is ap...

When a potential difference of 3 V is applied between the two ends of a 60 cm long metallic wire, current density in it is found 10 be `1xx10^(-7)Am^(-2)` Find conductivity of the material of the wire in SI system.

Text Solution

Verified by Experts

From the relation `E=V/d and J=sigma E," calculate "sigma`
Promotional Banner

Similar Questions

Explore conceptually related problems

Two plates are 2cm apart, a potential difference of 10 volt is applied between them, the electric field between the plates is

When 115V is applied across a wire that is 10m long and has a 0.30mm radius, the current density is 1.4xx10^(4) A//m^(2) . The resistivity of the wire is

When a potential difference of 2 volt is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate : the resistance per unit length of the wire,

When a potential difference of 2 volt is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate : the resistance across the ends of the wire if it is doubled on itself.

When a potential difference of 2 volt is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate : the resistance of 2 m length of the wire,

The potential difference between two points in a wire 75.0 cm apart is 0.938 V , when the current density is 4.40 xx 10^7 A// m^2 . What is (a) the magnitude of E in the wire? (b) the resistivity of the material of which the wire is made?

When 5 V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons is 2.5 xx 10^(-4) ms ^(-1) . If the electron density in the wire is 8 xx 10^(28) m^(-3) , the resistivity of the material is close to :

In the experiment of Ohm's law, when potential difference of 10.0 V is applied, current measured is 1.00 A. If length of wire is found to be 10.0cm and diameter of wire 2.50 mm, then find maximum permissible percentage error in resistivity.

Consider a conductor of length 40 cm where a potential difference of 10V is maintained between the ends of the conductor. Find the mobility of the electrons provided the drift velocity of the electrons is 5xx10^(-6) ms^(-1)

Calculate the potential difference across the ends of a wire of resistance 2 Omega' when a current of 1.5 A passes through it.