Electricity and Magnetism Answers

write down the vector equation which represents the lorentz force law and define all the symbols

calculate the self-inductance of a solenoid of of length 10 cm,area 5 square cm and 200 turns

what would happen if the coil had lots of turns instead of just one?

A certain inductor has an inductance of 0.50H and a resistance of 2.0. It is placed in series with a switch, a 12.0-V battery and a 4.0 ohms resistor. Find the time constant of the circuit and the energy stored in the inductor.

An emf of 5V is suddenly applied to an LR circuit. The value of the resistor in the circuit is 15. At one inductive time constant, what is the rate at which energy is delivered by the battery?

A series circuit consisting of an uncharged 42F capacitor and 10M ohms resistor is connected to 100V power source. what are the current in the circuit and the charge on the capacitor after one time constant?

A long, thin rod (length=4.0 m) lies along the x axis, with its midpoint at the origin. In a vacuum, a +8.0 point charge is fixed to one end of the rod, and a -8.0 point charge is fixed to the other end. Everywhere in the x, y plane there is a constant external electric field (magnitude=5.0x10^3 N/C) that is perpendicular to the rod. With respect to the z axis, find the magnitude of the net torque applied to the rod.

find the electric field at the point p due to the charges shown in the

How do you find the electric field from a hollow uniformly charged sphere