A given wire has a resistance of 2.95 ohms per 1000 ft. A 74-ft extension cord made of this wire is used simultaneously with a food mixer that draws 8 A and an electric kettle that draws 16 A.
If voltage source is constant at 120 V, what is the available voltage for the tools?
How much power is lost in the extension cord?
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Explanation:
Power in watts is voltage x current. A given current and cable resistance defines the applicable voltage drop. If it is 10 volts for a current of 10 amps, the power lost in the cable is 100 watts
If you plug an 110V appliance in 220V outlet (same as 120v to 230v, 240v) you can only hope that some protection device disconnects the power to the appliance. Otherwise: ... It is current that is your enemy, a piece wire that is warm at 110V (120v) will turn into a fuse at 220V (230v, 240v), all other things being equal.
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220 v I hope this helps you
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