How does current affect the strength of an electromagnet?
1 Answer
Jun 3, 2015
The magnitude of current is proportional to the strength of the magnetic field it produces. This fact is well illustrated by the Biot-Savart law or the Ampere's circuital theorem.
This naturally implies that the current is directly proportional to the strength of the electromagnet.
For example, if we are using a solenoid as an electromagnet, we are familiar with the expression,