The hotplate is designed for voltage U = 220 V and current I = 3.0 A. How long will it consume
| July 10, 2021 | education
The hotplate is designed for voltage U = 220 V and current I = 3.0 A. How long will it consume current energy W = 0.66 kW * h?
Initial data: U (rated voltage for which the electric stove is designed) = 220 V; I (current in the electric stove) = 3 A; W (consumed by the electric stove energy) = 0.66 kW * h = 660 W * h.
The operating time of the electric stove is determined from the formula: W = P * t = U * I * t, whence t = W / (U * I).
Let’s calculate: t = 660 / (220 * 3) = 1 hour.
Answer: The electric stove will consume a given amount of electricity in 1 hour.
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