Ground conductor Insulators each provide 1.00 x 10° 2 Rosistance 240kV, 500A Transmission Line Figure 21.51 High-voltage (240-kV) transmission line carrying 5.00x 102 A is hung from a grounded metal transmission tower. The row of ceramic insulators provide 1.00x10° 2 of resistance each.
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.
A 240-kV power transmission line carrying 5.00×102 A is hung from grounded metal towers by ceramic insulators, each having a 1.00×109 -Ω resistance.
(a) What is the resistance to ground of 100 of these insulators?
(b) Calculate the power dissipated by 100 of them.
(c) What fraction of the power carried by the line is this?
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