Question

1)mention the name of two devices that work on the basis of magnetic effects of electric current
2)name the devices used in these days in place of electric circuits
3)state a property of a conducting wire is utilised in making electric fuse
4)give the name any two electrical appliances in which electromagnets are used
5)why is the electric fuse required in all electrical appliance



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Answer 1

Answer:

The devices that work on the basis of magnetic effects of current are loudspeaker and electric bell. Name the device used these days in place of eiectric fuses in electrical circuits. Answer: The device used in these days in place of electric fuse is MCB (Miniature Circuit Breaker)

Answer 2

Answer:

2)MCB (miniature circuit breakers).

4)loud speakers,electric bell.

5) because they there actually as an safety device.