GEOLOGY

Detailed explanation-1: -Adding the wind or loop of wire in the core of the electromagnet can increase its. magnetic field.

Detailed explanation-2: -The thickness of the wire affects the strength of the electromagnet because the resistance of the circuit is inversely proportional to the cross-sectional area. So if the current will drop, then more current will flow in the electromagnet. Thus, the thickness of the wire increases the strength of the electromagnet.

Detailed explanation-3: -Thus, it is true that the thickness of the wire affects the strength of the electromagnet. The strength of the magnet will increase with the increase in the thickness of the wire too because per unit area, more electrons will pass through a thicker wire.

Detailed explanation-4: -Essentially thinner wire allows more voltage, but less current. Thicker wire means you can fit less turns in the same volume, which means less resistance and less losses for the same amount of current, but less induced voltage, so thicker wire allows less voltage but more current.

Detailed explanation-5: -Increase the number of coil turns. Increase the current flowing through the coil. Wrap the coil tightly around the iron piece. Increase the current or voltage.