What is Ohm's Law Class 10?

Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across its ends, provided the temperature and other physical conditions remain constant. Ohm’s Law is a fundamental principle in physics that helps understand how electricity flows in a circuit. It shows a simple relationship between three main electrical quantities:

• Voltage (V) – the electric potential difference
• Current (I) – the flow of electric charge
• Resistance (R) – the opposition to the flow of current

Ohm's Law Formula:

V = I × R

Where:

• V = Voltage in volts (V)
• I = Current in amperes (A)
• R = Resistance in ohms (Ω)

Key Points:

• If the resistance increases, the current decreases.
• If the voltage increases, the current increases.
• It is used to calculate the unknown value when two quantities are known.

Application of Ohm’s Law:

• Designing electrical circuits
• Calculating safe voltage and current levels
• Understanding power consumption