Question

If the current is reduted in an electromagnet, what happens to the magnetic field strength?

A. it cancels out the magnetic field
B. it remains the same
C. it is reduced
D. it increases

Answer 1

Reducing the current in an electromagnet will result in a reduction in the magnetic field strength since the two are directly proportional.

Step-by-step explanation:

If the current in an electromagnet is reduced, the magnetic field strength is also reduced. This is because the strength of the magnetic field is directly proportional to the magnitude of the current flowing through the wire that creates the electromagnet. Lowering the current decreases the number of magnetic field lines, which corresponds to a decrease in the strength of the magnetic field, as seen in various electromagnetic induction experiments and setups, like those involving conducting rods sliding along metal rails in a uniform magnetic field.