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Tuesday, 8 January 2013

Choke coil


Choke coil
A choke coil is an inductance coil of very small resistance used for controlling current in an a.c. circuit. If a resistance is used to control current, there is wastage of power due to joule heating effect in the resistance. On the other hand there is no dissipation of power when a current flows through a pure inductor.

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