Which of the following electromagnets would have the greatest magnetic field?
A- electromagent with long nail and 3 coils
B- electromagnet with short nail and 2 coils
C- electromagnet with short nail and 4 coils
D- electromagnet with long nail and 1 coil
1 answer
C- electromagnet with short nail and 4 coils. Having more coils creates a stronger magnetic field, and while the length of the nail can also play a role, the number of coils is the most significant factor.
1 answer