contestada

How can the strength of an electromagnet’s field be decreased?

A.by decreasing the number of loops in the solenoid

B.by winding the coils more tightly

C.by using a stronger ferromagnetic material for the core

D.by increasing the current in the solenoid

Respuesta :

A by decreasing the number of loobs in the solenoid

Explanation:

The more loobs you add the stronger the field and the more loobs you remove the more the field becomes weaker