PROBLEM 2: A RTD is used to measure the temperature of an oven. The RTD forms one arm of a Wheatstone bridge as shown below. E; = 10.23 volts. RTD properties: resistance of 123 at a temperature of 0 °C, and a thermal coefficient of resistance of 0.003625 °C¹. The value of the variable resistor R₁ must be set to 162 2 to balance the bridge circuit. RTD Ra 식이다 a. Determine the temperature of the RTD. b. Draw the circuit but replace the variable resistor R, with a fixed resistor and replace the galvanometer with a voltmeter. Calculate the voltmeter's voltage.

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PROBLEM 2:
A RTD is used to measure the temperature of an oven. The RTD forms one arm of a
Wheatstone bridge as shown below. E; = 10.23 volts. RTD properties: resistance of 123 Q
at a temperature of 0 °C, and a thermal coefficient of resistance of 0.003625 °C¹. The value
of the variable resistor R₁ must be set to 162 02 to balance the bridge circuit.
lilil
RTD
Ra
a. Determine the temperature of the RTD.
b. Draw the circuit but replace the variable resistor R₁ with a fixed resistor and replace the
galvanometer with a voltmeter. Calculate the voltmeter's voltage.
Transcribed Image Text:PROBLEM 2: A RTD is used to measure the temperature of an oven. The RTD forms one arm of a Wheatstone bridge as shown below. E; = 10.23 volts. RTD properties: resistance of 123 Q at a temperature of 0 °C, and a thermal coefficient of resistance of 0.003625 °C¹. The value of the variable resistor R₁ must be set to 162 02 to balance the bridge circuit. lilil RTD Ra a. Determine the temperature of the RTD. b. Draw the circuit but replace the variable resistor R₁ with a fixed resistor and replace the galvanometer with a voltmeter. Calculate the voltmeter's voltage.
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