How is the strength of an electromagnet affected by the number of turns
of wire in a coil?
e

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

How much work would it take to move a coulomb charge across a 4 volt potential difference?