Question

what is meant by ohms law​

Answer 1

Answer :

The Ohm's law states the relationship between the potential difference and the current of the circuit.

It states that the potential difference is directly proportional to the current when the temperature and the pressure is constant.

Hence, V ∝ I.

⇒ V = IR

Now, R is said to be the resistance of the circuit.

⇒ Resistance is the property of the conductor that opposes or resists the flow of electrons.

⇒ Hence, by Ohm's law ; R = V/i.

⇒ The SI unit of resistance is Ω.

⇒ Current is the rate of flow of charges in the conductor.

⇒ The SI unit of current is ampere.

⇒ Potential difference is the work done to move a charge from one point to another.

⇒ The SI unit of potential difference is volts.

Answer 2

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Ohm’s law basically states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and directly proportional to the resistance of the circuit.

★ Ohm's law formula :-

→ V = IR or Voltage = Current × Resistance.

→ The SI unit of resistance is ohms and it is denoted by Ω.

→ Basically this law help us to calculate the power, efficiency, current, voltage, and resistance of an element of an electrical circuit.

Factors:-

• Area of cross section or we can say thickness of wire.

• Nature of the material.

• The length of the wire.