Question

Which quantity remains constant in Ohm's law, when temperature is constant? Explain.

Hint:

In Ohm's law, resistance (\( R \)) remains constant as long as the material’s temperature is stable.

Answer 1

Ohm's law states that: \[ V = IR \] where:
- \( V \) is voltage,
- \( I \) is current,
- \( R \) is resistance.
Constant Quantity: The resistance (\( R \)) remains constant when the temperature is constant.
Explanation:
- According to Ohm's law, if the temperature does not change, the ratio of voltage to current remains the same, meaning resistance remains constant.
- Resistance may change with temperature due to variations in material properties, but under constant temperature, resistance does not vary.