Wheatstone bridge principle is used to measure the specific resistance (S₁) of given wire, having length L, radius r. If X is the resistance of wire, then specific resistance is : S₁ = X(πr²/L). If the length of the wire gets doubled then the value of specific resistance will be :
Physics · Current electricity · electric instruments
Wheatstone bridge principle is used to measure the specific resistance (S₁) of given wire, having length L, radius r. If X is the resistance of wire, then specific resistance is : S₁ = X(πr²/L). If the length of the wire gets doubled then the value of specific resistance will be :
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