Question

Briefly explain OHM's law. ​

Answer 1

Explanation:

Ohm's law .

→ Ohm's law gives a relationship between current and potential difference .

→ According to Ohm's law : At constant temperature , the current flowing through a conductor is directly proportional to the potential difference across its end .

→ If I is the current flowing through a conductor and V is the potential difference ( or voltage ) across its ends , then according to Ohm's law :

I∝V ( At constant temperature ) .

This can also be written as : V∝I

Or V = R × I .

Where R is a constant called “resistance” of the conductor .

★ Resistance of a conductor : The property of a conductor due to which it opposes the flow of current through it is called resistance .

$\it R = \frac{V}{I}$

→ The resistance of a conductor depends on length, thickness, nature of material and temperature of the conductor.

→ The SI unit of resistance is ohm( Ω ) .

Answer 2

Answer:

Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that: The potential difference (voltage) across an ideal conductor is proportional to the current through it. The constant of proportionality is called the "resistance", R.

One of the most important and basic laws of electrical circuits is Ohm's law which states that the current passing through a conductor is proportional to the voltage over the resistance.

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