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1. A person is manufacturing a house. He bought 20 ropes of wire which has a density of 300 kg/m3. The height of the building to be constructed is 40 m. If the capacity of the current passed in the wire is 20 A and the voltage capacity is 80. Then what will be the opposing force to the current if the wire is used? a) 2 b) 4 c) 8 d) 1600

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ANS: B

Resistance = voltage/current
so ans is 80/20
12 years agoHelpfull: Yes(10) No(0)

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