Sristy Sristy 1. However, the method went unrecognised until , when Charles Wheatstone proposed it, in another paper[3] for the Royal Society, for measuring resistance in electrical circuits. Although Wheatstone presented it as Christie's invention, it is his name, rather than Christie's, that is now associated with the device.
Add a comment. Active Oldest Votes. Improve this answer. Carl Witthoft Carl Witthoft 2, 9 9 silver badges 13 13 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Ever heard of the Christie bridge? Instead the apparatus, composed of four resistors, a battery and a galvanometer, was named for the man who popularized it — Sir Charles Wheatstone.
A scientist and mathematician, Samuel Hunter Christie, developed the circuit to measure unknown electrical resistances and first described it in The bridge worked because of the special diamond-shaped arrangement of the four resistors. The Kelvin bridge was specially adapted from the Wheatstone bridge for measuring very low resistances.
In many cases, the significance of measuring the unknown resistance is related to measuring the impact of some physical phenomenon such as force, temperature, pressure, etc. The concept was extended to alternating current measurements by James Clerk Maxwell in and further improved by Alan Blumlein around Modifications of the fundamental bridge. The Wheatstone bridge is the fundamental bridge, but there are other modifications that can be made to measure various kinds of resistances when the fundamental Wheatstone bridge is not suitable.
Some of the modifications are:. Carey Foster bridge, for measuring small resistances. Click Here to Know about a Legend Dr. Abdul Kalam. Toggle navigation Menu. Social Discuss Sign Up Login. Wheatstone Bridge Famous Inventors. Home inventions Wheatstone Bridge. Invented Year. Invention Field. About Invention A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component.
Significance The Wheatstone bridge illustrates the concept of a difference measurement, which can be extremely accurate. Recently viewed 0 Save Search.
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