An electric vacuum cleaner with a power of 500 W is connected to a 220V network.
| February 8, 2021 | education
An electric vacuum cleaner with a power of 500 W is connected to a 220V network. What is the current strength for which it is designed?
Initial data: P (power of the electric vacuum cleaner) = 500 W; U (mains voltage) = 220 V.
We determine the current strength for which the electric vacuum cleaner is designed from the formula: P = U * I, whence I = P / U.
Calculation: I = 500/220 = 2.27 A.
Answer: The electric vacuum cleaner is designed for a current strength of 2.27 A.
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