At 20°C, the platinum resistor in an electric circuit connected to a 5.0-V battery has a resistance of 20-W. What is the current in the circuit when the temperature of the carbon rises to 80°C? ( a temperature coefficient of resistivity of 3.9 x 10-3 (°C)-1 .
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At 20°C, the platinum resistor in an electric circuit connected to a 5.0-V battery has a resistance of 20-W. What is the current in the circuit when the temperature of the carbon rises to 80°C? ( a temperature coefficient of resistivity of 3.9 x 10-3 (°C)-1 .
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