Thermal emf can be prevented by _________(a) using more sensitive galvanometers(b) using similar metals(c) by separating the dissimilar metals(d) reducing the supply emfI got this question in an internship interview.My query is from Measurement Errors in a Wheatstone Bridge in section Measurement of Resistance of Electrical Measurements

Thermal emf can be prevented by _________(a) using more sensitive galv

1.	Thermal emf can be prevented by _________(a) using more sensitive galvanometers(b) using similar metals(c) by separating the dissimilar metals(d) reducing the supply emfI got this question in an internship interview.My query is from Measurement Errors in a Wheatstone Bridge in section Measurement of Resistance of Electrical Measurements
Answer» The correct answer is (a) using more sensitive galvanometers The BEST I can explain: Thermal emf can be ELIMINATED by making use of sensitive galvanometers consisting of COPPER coils and copper suspension systems. DISSIMILAR metals can’t be physically separated.

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