The resistance of the coil used in a platinum-resistance thermometer at 0 C is 3 00 Ω and at 100 - Physics - Current Electricity

Question

The resistance of the coil used in a platinum-resistance
thermometer at 0°C is 3 00 Ω and at 100°C is 3 75
Ω Its resistance at an unknown temperature is measured 3 15
Ω Calculate the unknown temperature

Anshu Agrawal · Accepted Answer

Dear student,

t=Rt-R0R100-R0×100t=3 15-3 003 75-3 00×100t=0 150
75×100t=200C

regards

The resistance of the coil used in a platinum-resistance thermometer at 0°C is 3.00 Ω and at 100°C is 3.75 Ω. Its resistance at an unknown temperature is measured 3.15 Ω. Calculate the unknown temperature.