Physics – 4.2.4 Resistance | e-Consult
4.2.4 Resistance (1 questions)
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Answer:
Graph: The graph should be a straight line passing through the origin (0,0). Plot the points provided and draw a line connecting them. The line should be perfectly straight.
Determining Resistance:
The resistance is the gradient of the voltage-current graph. Since the graph is a straight line passing through the origin, the gradient is equal to the resistance.
R = V / I = 1.0 V / 0.2 A = 5 Ω
Answer: The resistance of the circuit is 5 Ω.
Table of Data:
| Voltage (V) | Current (I) |
| 1.0 | 0.2 |
| 2.0 | 0.4 |
| 3.0 | 0.6 |
| 4.0 | 0.8 |