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- requires manual balancing
- sensitive null detector or galvanometer is required to detect balance condition
- measurement current needs to be reasonably high to achieve sufficient sensitivity.
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Why kelvin double bridge is called double bridge?
kelvin double
How can you measure the resistance of field coil?
kelvin double bridge
What is the operation in using kelvin bridge?
A Kelvin bridge (as well called a Kelvin double bridge and in some countries a Thomson bridge) is a measuring instrument used to measure unknown electrical resistors below 1 ohm. It is specifically designed to measure resistors that are built as four terminal resistors.
How does the Kelvin bridge differ from the wheatstone bridge?
kelvin's bridge is the modified version of wheatstone bridge and used to measure resistance values less than 1 ohm.
What is the concept of the kelvin bridge circuit?
Kelvin Bridge: This Bridge is a modified version of Wheatstone Bridge and provides greatly increased accuracy in the measurement of low value resistances, generally below 1 ohm.
For low resistance measurement by Kelvin double bridge 4terminals what would be the minimum distance between current and potential leads?
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What advantage does the Kelvin scale have for scientific measurements?
An advantage of the Kelvin scale is that all the temperatures on this scale are positive. Another advantage is that the temperature in Kelvin is directly proportional to the total internal energy of the substance: if you double the internal energy, you will double the temperature in Kelvin.
Which temperature scale does the average kinetic energy of molecules double when the temperature double?
On the Kelvin Scale
What are the two main types of bridges in electricity?
The two main types of bridges in electricity are Wheatstone bridge and Kelvin bridge. The Wheatstone bridge is used to measure resistance while the Kelvin bridge is used to measure low resistance values. Both bridges are commonly used in electrical and electronic circuit analysis for accurate measurements and fault detection.
What was learned from William Thomson?
Known for: 1.Joule-Thomson effect 2.Thomson effect (thermoelectric) 3.Mirror galvanometer 4. Siphon recorder 5.Kelvin materialKelvin water dropper 6.Kelvin wave 7.Kelvin-Helmholtz instability 8.Kelvin-Helmholtz mechanism 9.Kelvin-Helmholtz luminosity 10.Kelvin transform 11.Absolute Zero 12.Kelvin's circulation theorem 13.Stokes' Theorem 14.Kelvin bridge 15.Kelvin sensing 16.Kelvin equation 17.Magnetoresistance 18.Four-terminal sensing 19.Coining the term 'kinetic energy'
What temperature in degrees Fahrenheit would a fixed volume of gas need to be heated to in order to double its pressure if it starts out at?
To double the pressure, you will need double the temperature. Note that you have to use the absolute temperature (usually Kelvin) for this calculation. So, for example, if you start off at 100 degrees Celsius, you convert that to Kelvin (add 273 to convert from Celsius to Kelvin), double the number to get double the temperature, then convert back to Celsius (subtract 273 from the previous result).Similarly, if you start out at a certain number of degrees Fahrenheit, you must first convert that to Kelvin, then double the result, and finally convert this last result back to Fahrenheit.
What is the effect on the volume of a gas if you simultaneously double its pressure and double its kelvin temperature?
according to the ideal gas equation , volume will be four time of initial value.
