Electrical Hint: A resistor offers a fixed amount of opposition (resistance) to any current flow through it regardless of changes in the magnitude of the current. A resistor can not store nor dispense electrical energy. A resistor converts electrical power in to heat and releases that heat in to the environment. A choke (inductor) only offers opposition (reactance) to changes in current flow. A pure inductor offers no opposition to an unchanging current flow regardless of the magnitude of that current. A choke stores electrical energy during an increase in current through the choke and restores electrical energy (come hell fire or high water, ready or not) back into the circuit during a decrease or stoppage in current through the choke. A choke does not, averaged over time, remove electrical energy from a circuit.. About the only thing that a choke and resistor have in common is that the amount of opposition to current flow from each one is expressed in Ohms.
Posted on: Wed, 22 Oct 2014 12:12:24 +0000
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