Electricity and Magnetism Answers

write formula electric field due to point charge.

explain quantization of electric charge.

write gauss law for electrostatic.

An electron is released from rest in a uniform electric field. The electron accelerates
vertically upward, travelling 4.50 m in the first 3.00 micro second after it is released. What
are the magnitude and direction of the electric field? [Note: Neglect the gravitational force]

Write electric potential due to point change Q.

Explain properties of electric charge.

Four equal positive charges placed on corner on square. Find force on its centre

Write electric field due to point charge.

A coil of area 10-3 m2 and consisting of 30 turns of wire is placed with its plane at right angles to a magnetic field of flux density 0.1 T. When the coil is withdrawn from the field a meter in series with coil indicates that a charge of 100 mC has flown around the circuit. What is the combined resistance of the coil and meter?

a wire loop with radius 0.5 m and resistance 2 W is placed in a long solenoid with the plane of the loop perpendicular to the axis of the solenoid. The solenoid has a radius of 0.15 m and has 2500 turns per meter. A current is switched on inside the solenoid and reaches its maximum value in 0.02 s. If a current of 4 mA if induced in the loop, what is the maximum value of the current induced in the solenoid?