The current in a certain wire at 20. 0°C is 2. 40 A When the
potential difference between the ends of the wire is 1. 50 V. If the wire
is heated to 80. 0°C and the potential difference remains the same, the
current decreases to 2. 00 A. What is the resistance of the wire
at 20. 0°C?
At 80. 0°C?