A resistance R is measured using a metre bridge with standard resistance S = 100 Ω. The null point is at ℓ₁ = 2.9 cm. Which change would usefully improve the accuracy?
Physics · Current electricity · Electrical Instruments: Galvanometer, Ammeter, Voltmeter & Potentiometer
A resistance R is measured using a metre bridge with standard resistance S = 100 Ω. The null point is at ℓ₁ = 2.9 cm. Which change would usefully improve the accuracy?
Options