Application of ElectromagnetElectric BellWhen 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. Electromagnetic RelayA relay is an electrical switch that opens and closes under the control of another electrical circuit. Circuit BreakerThe 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. Telephone EarpieceAn 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) 8.2 Electromagnet 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 8.8 Transformer 8.9 Sources of Energy and Generation of Electricity 8.10 Transmission of Electricity Back to Main Table |
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