A positive test charge is a distance d from the negative source charge. What happens to the magnitude of the electric field if you investigate a point at 2d instead?
(choose below)
it gets bigger, by not by twice
it gets half as big
it gets smaller , but not by half
it gets twice as big
it stays the same

i think it stays the same but im not sure

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

What is the most useful equation for electric power?

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big