A copper transmission cable 19 km long and 16.5 cm in diameter carries a current of 33 A. How much electrical energy (in MJ) is dissipated as thermal energy in 7 hours? Note: p= 1.72x10-8 ohms x m
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
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A copper transmission cable 19 km long and 16.5 cm in diameter carries a current of 33 A. How much electrical energy (in MJ) is dissipated as thermal energy in 7 hours? Note: p= 1.72x10-8 ohms x m
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