The electric lamp is connected to a 220V network. The current in the lamp is 0.4A. What is the power of the lamp?
| April 26, 2021 | education
The power of any electrical receiver, in our case an electric lamp, will be equal to:
W = U x I,
where U is the voltage across it, and I is the current through it.
We substitute the values into this formula and we get the answer:
W = 220 x 0.4;
W = 88 (W).
Answer: the power of this electric lamp is 88 watts.
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