resistance temperature sensor, Electrical Engineering

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A Platinum resistance temperature sensor has a resistance
of 120 ohm at 0°C and forms one arm of a Wheatstone
bridge. At this temperature the bridge is balanced with
each of the other arms being 120 ohm. The temperature
coefficient of resistance of the platinum is 0.0039/K.
What will be the output voltage from the bridge for a
change in temperature of 20°C? The loading across the
output is effectively open circuit and the supply voltage to
the bridge is from a source of 6V.

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