Question

Which statement about electromagnets is correct? A. As the number of turns in the wire increases, the strength of the electromagnet increases.B. As the intensity of the current increases, the number of turns in the wire increases.C. As the number of turns in the wire increases, the intensity of the current increases.D. As the strength of the electromagnet increases, the intensity of the current increases.

Answer 1

Explanation:

Increasing the current intensity through the wire cannot increase the number of turns.

Thus, option B is the incorrect option.

Also, the current in the wire will depend on the power supply and not on the number of turns the wire has. The current in the wire will not change by increasing/decreasing the number of turns.

Thus, option C is the incorrect option.

The strength of the electromagnet depends on the intensity of the current. Thus, the current intensity will determine the electromagnetic strength and electromagnetic strength will not determine the current.

Thus, option D is the incorrect option.

The strength of the electromagnet depends upon the turns of wire around the metal core and the current or voltage passing through the wire. Thus, if we increase the number of turns around the metal core and the current or voltage is also increased, the strength of an electromagnet will also increase.

Thus the correct option is A.

Final Answer:

The correct option is A.