can someone help with question 4 please Part A: Set up 1 (10 Ohms) Current 3) Do

Question

can someone help with question 4 please

Part A: Set up 1 (10 Ohms) Current 3) Does this graph suggest that the device obeys Ohm's lasw or not? No, the graph suggests that the device doestnt obeys Ohm's law since the relationship between the current and the potential ditterence is increasing exponentlially then, the experimental values also shows that the values ol the potential energy and the cutent arent increasing at a constant rate through time. 4 If the graph suggests the device obeys Ohum's Latw, find the resistance of the device using the graph. If not, can you suggest a medanism for the deviation from Ohun's Law?

Explanation / Answer

The graph does not obey ohms law therefore we cannot calculate the resistanve . Now deviation from ohms law is possible if the resiatnace changes due to heating up of wire as the current or voltage increases .

For example in a incandescent bulb , zener diode .

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