Question : Wheatstone bridge is an arrangement of _________ resistors used for accurate measurement of resistance.
Option 1: three
Option 2: six
Option 3: five
Option 4: four
Correct Answer: four
Solution : The correct answer is four.
A Wheatstone bridge consists of four arms, or resistors, where two arms have their ratio maintained at a fixed value, and the other two arms, or resistors, are left without any fixed value. This leaves the remaining arms balanced, with one arm having variable resistance and the other arm remaining at an unknown value.
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