Question

What is the power of a heater that has resistance 48 and operates at 240v

Answer 1

Given

Resistance of the heater, R=48 ohm

Voltage , V=240 V

To find

The power of the heater

Explanation

The power is given by

$P=\frac{V^2}{R}$

Putting the values,

$P=\frac{240^2}{48}=1200\text{ W}$

Conclusion

The power is 1200 W