Which method can be used for absolute measurement of resistances?
A. Lorentz method
B. Raleigh method
C. Ohm's law method
D. Wheatstone bridge method
Answer: Option D
Solution (By Examveda Team)
Absolute measurement of resistance involves determining the resistance value without reference to any standard resistor.The Wheatstone bridge method is a precise technique for absolute measurement of resistance. It balances two legs of a bridge circuit and directly relates the unknown resistance to known resistances and measurements of voltage or current.
Other methods:
Lorentz method and Raleigh method are not used for absolute resistance measurements but are applied in other contexts.
Ohm's law method involves relative measurements and requires reference standards for voltage and current, so it cannot be used for absolute measurements.
Hence, Option D is the correct answer.
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A Option is correct I request EMAXVIDA please recheck you site lot of error
Lorentz method is used for absolute measurement of resistances.. wheatstone bridge method is used to find unknown resistance