In a res istance temperature detector (RTD) using Platinum and Nickel, the temperature coefficient at 20°C is 0.004 /°C and resistance R = 106 ohms. Find the resistance at 25°C.
RTD of the above problem is used in a bridge circuit. If 
supply voltage is 10V. Calculate the voltage the detector must resolve to define 1°C change in temperature.
What will be an ideal response?
The resistance value 
at any temperature T can be expressed as,
is the resistance of the conductor at temperature 
is the temperature coefficient of the material, and
t is the difference in temperature
For larger temperature ranges, resistance value follows the polynomial relation
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