A thermistor has a response to temperature represented by o , R = R e0.3t where Ro = 5,000 , R = resistance, and T

A thermistor has a response to temperature represented by o , R = R e−0.3t where Ro = 5,000 Ω, R = resistance, and T = temperature in degrees Celsius. Find the linear model for the thermistor operating at T = 20°C and for a small range of variation of temperature.