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A power line running East-West at 150kVAC carrying a 75MWatt load is 10 meters overhead. A...

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Physics

A power line running East-West at 150kVAC carrying a75MWatt load is 10 meters overhead. A thief makes a 100 turn loopof insulated copper wire around a plastic garbage can with a 70cmdiameter. The voltage generated in this coil is used to chargebatteries for a fish-finder, lights and radio in his fish hut. Thebattery charger is electrically equivalent to a 5 ohmresistor.

a) [2] What orientation of the garbage pail winding willallow the greatest rate of electricity theft?

b) [4] Determine the voltage generated across thebattery charger.

c) [2] Residential power costs $0.10/kWh. What is thevalue of the power stolen per day.

d) [2] Why would metal can be a bad choice?


e) [4] Above the indication is that the other wire for theAC power transmission is very far away. In fact they both hang fromthe same structure. If each wire carries a 100amp current and theyare separated by 50cm, determine the force per unit length on thewires

Answer & Explanation Solved by verified expert
3.6 Ratings (293 Votes)
a Orientation of coil of 100 turns with respect to overheadcurrent carrying wire for getting maximum EMF is shown in figureAxis of 100 turns coil should be perpendicular to the overhead wirein order to get maximum induced EMFIf power line is running in the    See Answer
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