Question

Сопротивление спирали электроплитки 80 Ом. какую мощность имеет плитка, если ее положено включать в сеть 220 В?

Answer 1

P=U^2/R=220^2/80=605 Вт

Answer 2

Calculation of Power

To calculate the power of an electric stove, we can use the formula:

Power (P) = (Voltage (V))^2 / Resistance (R)

Given that the resistance of the electric stove is 80 Ohms and it is connected to a 220V power supply, we can substitute these values into the formula to find the power.

Power (P) = (220V)^2 / 80 Ohms

Calculating this equation gives us the power of the electric stove.

Power (P) = 48400 / 80 Watts

Simplifying further:

Power (P) = 605 Watts

Therefore, the electric stove has a power of 605 Watts when connected to a 220V power supply.