UPPCL EE :Electromagnetic Fields Quiz 2

A potential of 40 V is applied between the two parallel plates of condenser which is separated about 5 cm apart. If a charge of 2.5 × 10^–3 coulomb is placed between the plates. Find out the force acting on this charge?

Calculate the directional vector of a scaler field F = 3xy²z at a point P (1, 1, 2).

In region

The flux radiating out of a sphere of radius 1m centered at the origin is

A medium behaves like dielectric when the

The electric flux density is _______ to the electric flux lines and the electric fields is _______ to the electrical potential lines.

A capacitor of 40 μF is charged potential difference of 500 volts. The charge acquired by the capacitor, in Coulomb’s, is _________ 40 μF capacitor was charged up to 500 volts. How much will be done by the capacitor, in Coulomb?

The law that induces e.m.f. and current always oppose the cause which produces it, is discovered by ___________.

The area of cross-section of copper wire is 3 x 10^-6 m². It carries a current of 4.2 A . Calculate current density in the wire.