CBSE Class 10 Science 2020 Delhi Set 1

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Question : 23
Total: 30
A V-I graph for a nichrome wire is given below. What do you infer from this graph ? Draw a labelled circuit diagram to obtain such a graph.
Solution:  
From the graph, we infer that as the current in the nichrome wire increases, the potential difference across it increases linearly. Thus, the graph follows the ohm's law.
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