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NEET 2014 Physics question

PhysicsCurrent ElectricityNEET 2014

Two cities are 150 km apart. Electric power is sent from one city to another city through copper wires. The fall of potential per km is 8 volt and the average resistance per km is . The power loss in the wire is

Answer: (2)

Solution

Total resistance of the wire . Current from the drop per km: . Power loss I^2R$ =

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Question ID VK-091500