Question

I want a derivation of resistance.​

Answer 1

Answer:

Here is your answer

Explanation

By Ohms law

The potential difference, V, across the end of a given metallic wire in an electric circuit is directly proportional to the current flowing through it, it provided its temperature remain same.

According to law,

V ⛮ I

V/I = constant

= R

Therefore,

V = IR

Here,

Ris a constant for the given metallic wire at a given temperature and is called its resistance. It is the property of a conductor to resist the flow of charges. SI unit of resistor is Ohm.

If the potential difference across the two ends of the conductor is 1 V and the current through it is 1A then resistance of conductor is 1 Ohms.

That is,

1 Ohms = 1 Volt / 1 Ampere.

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