When is the zebra in motion? when is it no moving

Moving is when something is in motion and it remains in motion until an immovable force stops it. On the other hand when something is still then it is considered as not moving.

Explanation:

when its wakling or moving

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.