Calculate the electric field in a copper wire of cross-sectional area `2.0 mm^2` carrying a current of 1 A. The conductivity of copper `= 6.25 xx 10^7 S m^-1`

Estimate the average drift speed of conductio electrons in a copper wire of cross-sectional area 10^-7m^2 carrying a current of 1.5 A, Assume the density of conduction electrosn to be 9xx10^28 m^-3 and change on electio = 1.6 xx10^-19 jC

Estimate the average drift speed of conductin electrons in a copper wire of cross sectional area 1.0xx10^(-7) m^2 carrying a current of 1.5 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is 9.0xx10^3 kgm^(-3) and its atomic mass is 63.5 u.

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the average force on each electron in the coil due to the magnetic field? (The coil is made of copper wire of cross-sectional area 10^-5 m^2 , and the free electron density in copper is given to be about 10^29 m^-3 .)

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the total torque on the coil, (The coil is made of copper wire of cross-sectional area 10^-5 m^2 , and the free electron density in copper is given to be about 10^29 m^-3 .)

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the total force on the coil, (The coil is made of copper wire of cross-sectional area 10^-5 m^2 , and the free electron density in copper is given to be about 10^29 m^-3 .)

A copper has 80xx10^28 per cubic metre. A copper wire of length 1m and cross-sectional area 8.0xx10^-6m^2 carrying a current and lying at right angle to a magnetic field of strength 5xx10^-3T experiences a force of 8.0xx10^-2N. Calculate the drift velocity of free electrons in wire.

What is the drift velocity of electrons in a silver wire of length 1 m, area of cross-section 3.14 xx 10^-6m^2 and carrying a current of 10 A. Given, charge on electron = 1.6 xx 10^-19C , Avogadro number = 6.02 xx 10^23 atomic weight of silver = 108 and density of silver = 10.5 xx 10^3 kg m^-3 .

Given that resistivity of copper is 1.68 xx 10^-8Omega m. Calculate the amount of copper required to draw a wire 10 km long having resistane 10Omega . The density of copper is 8.9 xx 10^3 kg m^-3

Calculate the electrical conductivity of the material of a conductor of length 3m, area of cross section 0.2 mm^2 having a resistance of 2 ohm.

Calculate the conductivity of a wire of length 200 cm, area of cross-section 2cm^2 and of resistane 5xx10^4Omega .