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 115 V is applied across a wire of length 10m and radius 0.3 mm, the current density is 1.4 xx 10^4 A m^2 . The resistivity of the wire is:

When 230 V is applied across a wire that is 14.1 m long and has a 0.30 mm radius, the magnitude of the current density is 198 xx 10^(8) A//m^(2). Find the resistivity of the wire.

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 :

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 :

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 xx10^(28) m^(-3) , calculate the resistivity of the material of wire

A potential difference is applied across a wire of length 1 m and resistance 10 Omega , such that the current through it is 1 A. The electric field inside the wire is __________N/C.

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?

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?