An electromagnet becomes weaker when the amount of current through the coil increases.

True

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False

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Solution

The correct option is B False
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.
The electromagnet consists of wires wound into a coil as the number of turns of the coil is to increase the strength of the magnetic field increases.
Hence given statement is false.

Suggest Corrections

Similar questions

The strength of the electromagnet can be increased by

(a) reversing the directions of current

(b) using an alternating current of high frequency

(d) decreasing the number of turns of coil.

Q. The soft-iron core of an electromagnet loses its magnetism once the current passing through the electromagnetic coil stops because

In an electric bell, when the electromagnet pulls the iron strip, it also breaks the circuit. The current through the coil stops flowing. In this case, will the coil remain an electromagnet? How does an electric bell ring then?

How does the magnetic field increase when we increase the number of coils in an electromagnet?

Q. Two coils

P

and

Q

are kept near each other. When no current flows through coil

P

and current increases in coil

Q

at the rate

10 A / s

, the e.m.f. in coil

P

15 m V

. When coil

Q

carries no current and current of

1.8 A

flows through coil

P

, the magnetic flux linked with the coil

Q

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