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  4. Assertion: For good conductors, the I-V graph is a perfect straight line inclined to current axis Reason: By Ohm’s law, voltage across the ends of a conductor is directly proportional to the resistance of the conductor

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Q. Assertion : For good conductors, the $I-V$ graph is a perfect straight line inclined to current axis
Reason : By Ohm’s law, voltage across the ends of a conductor is directly proportional to the resistance of the conductor

Current Electricity

Solution:

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The given graph shows the $V-I$ graph of a good conductor Ohm’s law states that, current flowing through a conductor is directly proportional to the voltage between the ends of a given conductor, i.e. $V \propto i$