Write the following steps in sequential order to explain the working of an electric bell. (a) When current passes through the coil, it behaves like a magnet and attracts (pulls) the iron strip. (b) No more does the coil behave as an electromagnet and the attraction between the coil and the iron strip is lost. Because of this the iron strip gets back to its original position and touches the screw. (c) The hammer connected to iron strip also moves and strikes the gong because of which, sound is produced. (d) When the iron strip is pulled towards the coil, it loses contact with the screw and the circuit becomes open circuit. (e) Once again the circuit is closed, and the above process is repeated. (1) abcde (2) edcba (3) badec (4) acdbe

Step by step solution

01

Current passes through the coil and creates a magnet

When current passes through the coil, it behaves like a magnet and attracts (pulls) the iron strip. (a)

02

Iron strip loses contact with the screw

When the iron strip is pulled towards the coil, it loses contact with the screw and the circuit becomes open circuit. (d)

03

Hammer connected to iron strip moves and produces sound

The hammer connected to the iron strip also moves and strikes the gong because of which, sound is produced. (c)

04

Coil loses its magnetic behavior

No more does the coil behave as an electromagnet and the attraction between the coil and the iron strip is lost. Because of this, the iron strip gets back to its original position and touches the screw. (b)

05

Circuit is closed and the process repeats

Once again the circuit is closed, and the above process is repeated. (e) The correct sequential order is acdbe, option (4).

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