A current-carrying coil can be used to make a permanent magnet.

True

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False

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Solution

The correct option is A True
It's a powerful magnet that won't go away. It's just a flimsy magnet.
Its magnetism lasts only as long as the current passes through it.
It generates a very modest magnetic field.
It generates a powerful magnetic field.
Hence given statement is True

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Similar questions

(a) A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.

(b) State two ways to increase the force on a current-carrying conductor in a magnetic field.

Q. (a) Draw the magnetic lines of force due to a circular wire carrying current.
(b) What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?

A flat coil ABCD is freely suspended between the poles of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field. (a) What happens when a current is passed in the coil ?
(b) When will the coil come to rest ?
(c) When will the couple acting on the coil be (i) maximum, and (ii) minimum ?
(d) Name an instrument which makes use of the principle stated above.

State True or False :

A permanent magnet can be made strong by passing current through an insulated coil wound over it .

Q. If we let current pass through a coil wound around an iron nail for long ,can the nail transform into a permanent magnet?

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A current-carrying coil can be used to make a permanent magnet.

The correct option is A TrueIt's a powerful magnet that won't go away. It's just a flimsy magnet. Its magnetism lasts only as long as the current passes through it.It generates a very modest magnetic field. It generates a powerful magnetic field.Hence given statement is True

The correct option is A True
It's a powerful magnet that won't go away. It's just a flimsy magnet.
Its magnetism lasts only as long as the current passes through it.
It generates a very modest magnetic field.
It generates a powerful magnetic field.
Hence given statement is True