Higher Resistance Lower Voltage

Most hvdc links use voltages between 100 kv and 800 kv.

Higher resistance lower voltage. The concept is a simple one. A 1 100 kv link in china was completed in 2019 over a distance. But that can a. Higher concentrations of carbon which is a good conductor result in lower resistance.

A high voltage direct current hvdc electric power transmission system also called a power superhighway or an electrical superhighway uses direct current dc for the bulk transmission of electrical power in contrast with the more common alternating current ac systems. Low resistance for example 1ω or less implies that the circuit is a good conductor. The amount of resistance a resistor has is determined by the relationship of the current through it to the voltage across it which determines whether the circuit element is a good conductor low resistance or a bad conductor high resistance. Carbon composition resistors were commonly used in the 1960s and earlier but are not popular for general use now as other types have better specifications such as tolerance voltage dependence and stress.

The circuit with the higher resistance will allow less charge to flow meaning the circuit with higher resistance has less current flowing through it. I would like to appeal a little bit more to intuition about ohm s law. Provided a much lower body resistance figure augmented by contact with a ring a band of gold wrapped around the circumference of one s finger makes an excellent contact point for electrical shock or full contact with a large metal object such as a pipe or metal handle of a tool the body resistance figure could drop as low as 1 000 ohms 1 kω allowing an even lower voltage to present a. Ohm defines the unit of resistance of 1 ohm as the resistance between two points in a conductor where the application of 1 volt will push 1 ampere or 6 241 10 18 electrons.

Provide a path for ground current via a resistance that limits the current.