# Electromagnetism problems with answers

Recent questions in Electromagnetism
preprekomW 2020-12-03

### A rectangular coil of wire, 22cm by 35 cm and carrying a current of 1.4A, is oriented with the plane of its loop perpendicular to a uniform 1.5T magnetic field. a) calculate the net force and torque which the magnetic field exerts on the coil. b)the coil is rotated through a 30 degree angle about the y axis, the left side coming out of the plane. Calculate the net force and torque which the magnetic field now exerts on the coil

babeeb0oL 2020-11-27

### Two spherical objects are separated by a distance of ­$1.80×{10}^{­-3}$ m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object experiences an electrostatic force that has a magnitude of $4.55×{10}^{-21}$ N. How many electron did? It take to produce the chargeon one of the objects?

babeeb0oL 2020-11-26

### A proton is released in a uniform electric field, and it experiences an electric force of  toward the south. What are the magnitude and direction of the electricfield? The equation is E=f/q, but there is only one number and three variables. What numbers go in the other two?

Annette Arroyo 2020-10-20