What effect would increasing the number of loops in a coil of a wire have on an electromagnet

Increases the magnetic field strength

Explanation:

When electrical current is passed through a coil, it creates a magnetic field like a magnet. As the current keeps going, it generates north pole and south pole at both ends of the magnet. If the wire is continuous or probably long enough, its possible to generate a larger magnetic field as long as electric current is still passing through it. Increase in the length of the coil or wire leads to increase in the magnetic field strength.

E = BILsinlΘ

where b = magnetic field intensity

I = current passing through the coil

L = Length of the wire.

From the above equation, increase in length would definitely lead to increase in the magnetic field strength likewise decrease in the length would give a decrease in magnetic field strength.

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