Answer:
Power = 20 Watts
Explanation:
Given the following data;
Voltage = 100 V
Resistance = 500 Ohms
To find the power that is required to light a lightbulb;
Mathematically, power can be calculated using the formula;
[tex] Power = \frac {Voltage^{2}}{resistance} [/tex]
Substituting into the formula, we have;
[tex] Power = \frac {100^{2}}{500} [/tex]
[tex] Power = \frac {10000}{500} [/tex]
Power = 20 Watts
