How can the strength of an electromagnet be increased or decreased?

Answer 1

the current from the battery controls the strength of the electromagnet. Adjusting the voltage will also adjust the current as will adjusting the resistance in accordance with Ohm's Law. Current= voltage/resistance

Answer 2

There are several things that can be done to increase the strength of an electromagnet. Increasing the current through the coil and/or adding more turns to the coil will do it. Wrapping the coil more tightly will be good (but there are trade offs.) Making the coil out of less resistive material will be better. So will making a superconducting coil. Increasing the efficiency of the core by using exotic materials will help, too.

Answer 3

The strength of an electromagnet can be controlled by:

-- increasing or decreasing the current (amperes) flowing through the wire coil around the core;

-- increasing or decreasing the number of 'turns' of wire in the coil.

Answer 4

There are three ways in which we can either strengthen or weaken an electromagnet. These include:​

• Increasing or decreasing the current.

• Increasing or decreasing the number of turns/loops of the coil.​

•Using a magnetic material as a core inside the coil of the wire​.

Answer 5

by increasing or decreasing the charge going through the coils or moving an iron core in and out of the coils.

Answer 6

Increase the amount of current running through it.

Answer 7

To increase the strength, add voltage to a battery, add more coils , or increase the amount of batteries. To decrease just do the opposite.