Question

A 500-W device is connected to a 100-V power source. What current flows through this source?

A. 0.2 A
B. 50000 A
C. 5 A
D. None of the above

Answer 1

The current flowing through a 500-W device connected to a 100-V power source is calculated using the formula P = IV, which results in 5 amperes.

Step-by-step explanation:

To calculate the current flowing through a device connected to a power source, we use the formula P = IV, where P is power in watts (W), I is current in amperes (A), and V is voltage in volts (V). With a 500-W device connected to a 100-V power source, the equation becomes 500 W = I × 100 V. Solving for I gives us I = 500 W / 100 V = 5 A. Therefore, the current that flows through the source is 5 amperes (C).