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Q.

[90]

Is it true that the slope of the V-I graph gives resistance?


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a

True

b

False  

answer is A.

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Detailed Solution

The above statement is True.
According to Ohm's law, the current through a metallic conductor is directly proportional to potential differences applied across the conductor at a constant temperature.
     V
V=IR 
Where v=voltage,I=current and R=resistance. 
Here R is the proportional constant representing the resistance of the conductor.
The graph plotted between V, and I give a straight line passing through the origin.
The slope of the graph is defined by resistance
R=VI
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