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Temporary Magnets

In an electri...

Question

In an electric bell, striker is attracted by a/an__________.

A

bar magnet

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B

cylindrical magnet

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C

electromagnet

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D

horseshoe magnet

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Solution

The correct option is C
electromagnet

An electromagnet is a type of magnet in which the magnetic field is generated with the help of an electric current. Magnetic materials can behave like electromagnets if a current is passed through a coil around them. It is a temporary magnet, i.e. it loses its magnetic properties as soon as the current flow is stopped. Electric bell has an electromagnet in it which attracts the striker.

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Similar questions

Q. The switch of an electric bell is pressed. Now, arrange the following statements using the working of an electric bell.

(i) Electromagnet loses its magnetism and the striker goes back its original position.
(ii) The current flows through the circuit and electromagnet attracts the striker towards it.
(iii) The striker hits the gong and the circuit is broken.

The striker of the electric bell moves due to attractive force of the electromagnet.

Say True or False.

Q. Arrange the following statements using the working of an electric bell.

(i) Electromagnet loses its magnetism and the spring arm restores the striker to its original position.
(ii) The current flows through the circuit and electromagnet attracts the striker towards it.
(iii) The striker hits the gong and the circuit is broken.

Q. Assertion :An electric bell is a mechanical bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing or clanging sound. Electric bells have been widely used at railroad crossings, in telephones, fire and burglar alarms, as school bells, doorbells, and alarms in industrial plants. Reason: Electromagnetic force is the force of attraction between the north and south poles of magnets

Q. A/an ............... is employed in an electric bell.

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