explain electric bell
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Hola friend!! ✋
Rajdeep here......
An electric bell is made up of an electromagnet, a gong, a hammer attached on the top of an iron rod, a spring to which the iron rod is attached, a tapping switch and a power source (a DC battery or a stepped down AC current).
Now, when the switch is pressed, the soft iron core (electromagnet) gets magnetised. The iron rod (on the top of which the hammer is fixed) is attracted towards the magnet. The gong is placed just above the magnet. Now, since the iron rod comes closer and gets attached to the magnet, the hammer strikes the gong. Now, since the iron rod is not attached to the spring, the circuit gets broken due to which flow of current through the circuit stops. Thus, the soft iron core gets demagnetized, due to which the iron rod returns back and gets attached to the string. Again the circuit is complete, current flows through it, again the soft iron core is magnetized, again it attracts the iron rod, again the hammer hits the gong.
This process continues till current flow is stopped, I e., the switch is made off.
Thanks!!
Rajdeep here......
An electric bell is made up of an electromagnet, a gong, a hammer attached on the top of an iron rod, a spring to which the iron rod is attached, a tapping switch and a power source (a DC battery or a stepped down AC current).
Now, when the switch is pressed, the soft iron core (electromagnet) gets magnetised. The iron rod (on the top of which the hammer is fixed) is attracted towards the magnet. The gong is placed just above the magnet. Now, since the iron rod comes closer and gets attached to the magnet, the hammer strikes the gong. Now, since the iron rod is not attached to the spring, the circuit gets broken due to which flow of current through the circuit stops. Thus, the soft iron core gets demagnetized, due to which the iron rod returns back and gets attached to the string. Again the circuit is complete, current flows through it, again the soft iron core is magnetized, again it attracts the iron rod, again the hammer hits the gong.
This process continues till current flow is stopped, I e., the switch is made off.
Thanks!!
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2
An electric bell is a mechanical bell that functions by means of an electromagnet.
Hope its help u
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