__________ are difficult to measure using Wheatstone bridge.

(a) Higher resistances

(b) Currents

(c) Lower resistances

(d) Voltages

I have been asked this question in semester exam.

My doubt stems from Measuring Resistance the Wheatstone Bridge and Delta-to-Wye (Pi-to-Tee) Equivalent Circuits in section Simple Resistive Circuits of Electric Circuits

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