Question

Derive Ohm's law .And draw the graph representing Ohm's law.​

Answer 1

Answer:

According to Ohm's law the current flowing in a conductor is directly proportional to the potential difference applied across its ends provided that the physical conditions and the Temperature of the conductor remain constant.

so, According to the definition

$i \: \alpha \: v$

so

$= > \frac{v}{i} = constant$

so, we can put constant equal to 'r' the resistance of the conductor.

$= > \frac{v}{i} = r \\ = > v = ir$

so in this formula

i is the current flowing in the conductor.

v is the potential difference applied across the conductor.

r is the resistance of the conductor.

Unit of Resistance is called omega(Ω)

we know that the ratio between v and i is constant. so if the points are plotted in the graph it is a Straight line passing through the Origin.

please give my answer the Brainlyiest answer

Answer 2

$\large \green{ \fcolorbox{gray}{black}{ ☑ \: \textbf{Verified \: answer}}}$

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)