Application of Electromagnet
When the switch is on, the circuit is completed and current flows. The electromagnet becomes magnetised and hence attracts the soft-iron armature and at the same time pull the hammer to strike the gong.
A relay is an electrical switch that opens and closes under the control of another electrical circuit.
The figure shows the structure of a circuit breaker. A circuit breaker is an automatic switch that cut off current in a circuit when the current become too large.
An electromagnet is used in the earpiece of a telephone. The figure shows the simple structure of a telephone earpiece.
Table of Content
8.1 Magnetism (Revision)
8.3 Application of Electromagnet
8.4 Force on a Current-carrying conductor in magnetic Feild
8.5 Elctromagnetic Induction
8.6 Application of Electromagnetic induction
8.7 Alternating Current
8.9 Sources of Energy and Generation of Electricity
8.10 Transmission of Electricity
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