An electromagnet is a temporary magnet due to which of the following?

the magnet is only present when a current is present

the magnet is only present when the domains are not aligned

the magnet is only present when the current is turned off

the magnet is only present when the resistance is high

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?