A 170-kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.05  109 Ω resistance. (a) What is the resistance to ground of 60 of these insulators? (Assume the insulators are connected in parallel.)   (b) Calculate the power dissipated by 60 of them. (c) What fraction of the power carried by the line is this?

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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

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.