Question

on which effect electric bell is based on and write about consistent working of an electric bell

Answer 1

An electric bell consists of an iron core, on which is wound a wire as a coil. One end of the coil is connected to one terminal of a battery, and the other end to a steel rod that acts like a spring for the hammer touching the screw contact. The other terminal of the battery is connected to the screw contact with a switch in the middle.


Working of an electric bell

Electric current flows through the coil when the switch is ON, and the iron core acts as an electromagnet. The iron core attracts the hammer towards it. The hammer hits the bell and produces a sound. The circuit breaks at the screw contact when the hammer moves towards the iron core. At this point, the iron core ceases to be an electromagnet. The hammer is pulled back to its original position due to the spring action of the steel rod, and then touches the contact again to complete the circuit. The circuit is completed and current flows through the coil again, and the hammer strikes the bell again. The process repeats itself and you hear a ringing sound since the hammer keeps hitting the bell, until the switch is released.

Answer 2

Answer:

Hii user.....

Good evening....

Here is your answer.....

Electric bell....

The electric bell is a simple

household device based on the magnetic effects of current. It consists of a gong, an electromagnet, a soft iron rod (armature) and a Contact screw, all arranged in an electric circuit .

Working of an electric bell

✓When current flows through the electromagnet it acquires

magnetism and attract thearmature.

✓As the armature bends towards the electromagnet, the gong is struck. But at

the same time contact between armature and contact screw gets broken

and the circuit gets switched off.

✓As the current flow stops (due to the break in the circuit), the electromagnet

(immediately) loses it magnetism. It, therefore, no longer attracts thearmature.

✓The armature gets pulled back to its original position by spring action.

It, now, again comes in contact with the contact screw; the circuit gets

Completed again. The cycle repeats itself and the gong gets struck again.

This, in turn, again breaks the circuit.

✓Due to this alternate making and breaking of the circuit (which takes place

very rapidly), the electric bell goes on ringing continuously as long as the

switch is kept pressed.

Explanation:

Hope this helps you....✍️

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Explanation: