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Q.

Is it true that an electric bell has the arrangement to supply intermittent current to the electromagnet in it?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
The electric bell is an electro-mechanical device that produces a continuous buzzing, clanging or ringing sound when an electric current is supplied to it.
An electric bell has an arrangement for an intermittent supply of current. When it is ON, it allows the current to flow and rings the bell. Simultaneously it also flows the current to make an electromagnet that pulls the switch into the OFF state. Thus making the supply of current intermittent.
 
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