Calculating the Working Resistance of a 240V, 60W Lamp

How can we determine the working resistance of a 240V, 60W lamp?

The working resistance of the lamp is 960 ohms.

Understanding the Calculation Process:

Ohm's Law: The working resistance of a lamp can be calculated using Ohm's law, which states that resistance is equal to voltage divided by current.

Calculation Process:

1. Use the formula Power = Voltage * Current to find the current. Rearranging the formula gives us Current = Power / Voltage.

2. Substituting the given values (240V for voltage and 60W for power), we find that the current is 0.25 Amps.

3. Calculate the resistance using the formula Resistance = Voltage / Current.

4. Therefore, the working resistance of the lamp is 960 ohms.

By following these steps, we can determine the working resistance of a 240V, 60W lamp accurately.