A type of magnetic switch similar to a solenoid is a
Chapter , Problem 16(choose chapter or problem)
A type of magnetic switch similar to a solenoid is a relay(Fig. 28-32). A relay is an electromagnet (the iron rod insidethe coil does not move) which, when activated, attracts a pieceof iron on a pivot. Design a relay to close an electrical switch.A relay is used when you need to switch on a circuit carryinga very large current but you do not want that large currentflowing through the main switch. For example, the starterswitch of a car is connected to a relay so that the large currentneeded for the starter doesnt pass to the dashboard switch.
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