Question

Why do we use insulated copper wire while making electromagnets ?

• A. To protect it from sunlight
• B. To avoid short circuit
• C. To make it look good
• D. All of the above

Answer 1

The correct option is B

To avoid short circuit

If the wire was not insulated, electricity would not flow around the coil but instead would short-circuit the fastest way to ground which would not be around the coil.