At 20A?°C, the carbon resistor in an electric circuit connected to a 6.3-V battery has a resistance of 2.5 AcA??c 102 A?©. What is the current in the circuit when the temperature of the carbon rises to 74A?°C?

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Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.