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Sketch a graph to show the relationship between resistance R and temperature T (in °C) for a metallic conductor. - Leaving Cert Physics - Question f - 2019
Question f
Sketch a graph to show the relationship between resistance R and temperature T (in °C) for a metallic conductor.
Worked Solution & Example Answer:Sketch a graph to show the relationship between resistance R and temperature T (in °C) for a metallic conductor. - Leaving Cert Physics - Question f - 2019
Step 1
Labelled axes
Answer
To accurately represent the relationship between resistance (R) and temperature (T), start by drawing a graph with clearly labeled axes:
- The x-axis should represent the temperature (T) in degrees Celsius.
- The y-axis should represent the resistance (R).
Make sure to include units on both axes for clarity.
Step 2
Straight line (1 if through origin)
Answer
Next, sketch a straight line starting from the origin (0,0). This indicates that as the temperature increases, the resistance of a metallic conductor also increases. The slope of the line shows that the relationship is linear, demonstrating a direct proportionality between resistance and temperature in usual conditions for metallic conductors.