Lower resistances are difficult to measure using Wheatstone bridge circuit because of ____________(a) Leakage currents(b) I^2R effects(c) Power dissipation(d) Thermal breakdownThis question was posed to me during an interview.I need to ask this question from Measuring Resistance the Wheatstone Bridge and Delta-to-Wye (Pi-to-Tee) Equivalent Circuits topic in division Simple Resistive Circuits of Electric Circuits

Lower resistances are difficult to measure using Wheatstone bridge cir

1.	Lower resistances are difficult to measure using Wheatstone bridge circuit because of ____________(a) Leakage currents(b) I^2R effects(c) Power dissipation(d) Thermal breakdownThis question was posed to me during an interview.I need to ask this question from Measuring Resistance the Wheatstone Bridge and Delta-to-Wye (Pi-to-Tee) Equivalent Circuits topic in division Simple Resistive Circuits of Electric Circuits
Answer» CORRECT answer is (b) I^2R effects The best I can explain: A standard Wheatstone BRIDGE couldn’t measure lower resistances because of thermoelectric voltages which are generated at the junctions of the dissimilar METALS and also because of thermal heating effects- that is, i^2R effects.

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