All of the following are ways that an electromagnet can be made stronger EXCEPT-

PHYSICAL SCIENCES

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	adding more loops of wire
B	increasing the size of the iron core
C	changing the direction of the current moving through the wire
D	increasing the current moving through a wire

Explanation:

Detailed explanation-1: -Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity. An electromagnet works because an electric current produces a magnetic field.

Detailed explanation-2: -The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.

Detailed explanation-3: -increasing current in the coil.

Detailed explanation-4: -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.

There is 1 question to complete.