Question

Define Ohm's law. Draw V-1 graph for ohm's law when 'R' is
constant.
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Answer 1

Answer:

Ohms Law states that the voltage across two points of a current carrying conductor is directly proportional to the current set in the conductor.

V is proportional to I

V = IR

when R is the constant of proportionality

V I graph if resistance is uniform is a straight line from the origin. Refer textbook

Answer 2

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According to Ohm's law,

Current flowing in a conductor is directly proportional to the potential difference applied across to its ends at constant temperature & physical conditions.

So, According to the definition

V ∝ I

V/I = constant

Put the constant as “r” which indicates the resistance of the conductor.

R = V/I

V = IR

Where

I = current flowing in the conductor

V = potential difference applied across the conductor

R = resistance of the conductor

Unit of Resistance is called omega (Ω)