An electric bulb of resistance 500 ohm draws current 0.4 A from the source. Calculate :
the power of bulb

Explanation

To calculate the power of the electric bulb, we can use the formula for electrical power. The power (P) consumed by an electrical device can be calculated using the formula:

\[ P = V \times I \]

Where:
- \( P \) is the power in watts (W),
- \( V \) is the voltage in volts (V),
- \( I \) is the current in amperes (A).
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