Consider for simplicity an electric field or magnetic field in a region and a surface. The amount of field lines passing through the surface is defined as the flux. The concept of magnetic flux is …

Apr 25, 2018 · For an electric dipole to exist an external electric field is required. Two charges alone (one positive and one negative) will not be stable. This is because the charges will …

Consider a point charge q. We are free to chose the origin anywhere we please. In this case, we do it at the location of the charge. Thus, the field due to the charge at a distance r from the …

Field strength is just force per unit charge. The direction of a field is always the direction in which a positive particle 'feels' a positive force. In this case I get field strength, epsilon = 1.8 N.C^-1 …

This effect is not confined to gravitational fields. For example, moving a charge in an electric field would require work to be done and a corresponding change in potential energy.

Magnetism is a force like gravity and so can act against (or indeed with it). Even a static magnetic (or electric) field can levitate suitable (metallic) objects and therefore reduce the effects of gravity,

1/3 meters to the right of q1 and 3 meters to the left of q_1 (assuming q_2 is to the right of q_1) Electric field from q_1 to cancel q_2 would mean: E_1=E_2 kq_1/r^2=kq_2/(1-r)^2 r is the …

A more expanded answer would strat with Coulomb's Law, so that the electric field → E at any point in space due to the charge Qo at the Origin is: → E (→ r) = k Qo r2 ˆr This is spherically …

Explanation: 1: Electric Field Diagrams. It's a standard rule to always make arrows point from the negative charge to the positive charge. This is to probably indicate the electron flow. 2: The …

What is the change in electrostatic potential energy if an electron is moved #20m# by a uniform electric field of magnitude #155 N/C#?