What is the power delivered to a light bulb when the circuit has a voltage drop of 120 V and produces a current of 20.0 ampere?

Group of answer choices

6 watts

1,800 watts

60 watts

2,400 watts

1 answer

The power delivered to a light bulb (or any electrical device) can be calculated using the formula:

\[ P = V \times I \]

where \( P \) is power in watts, \( V \) is voltage in volts, and \( I \) is current in amperes.

Given:

  • Voltage \( V = 120 \) V
  • Current \( I = 20.0 \) A

Now, substituting the values into the formula:

\[ P = 120 , \text{V} \times 20.0 , \text{A} \]

\[ P = 2400 , \text{W} \]

So, the power delivered to the light bulb is 2,400 watts.