Question

При включении в электрическую сеть с напряжением 220 В мощность электрического чайника составляет 2200 Вт. Каково сопротивление (в Ом) спирали нагревательного элемента чайника? срочно

Answer 1

1)P=UI
I=P/U
I=2200:220=10A
R=U/I
R=220:10=22Ом

Answer 2

Calculating the Resistance of the Heating Element in the Electric Kettle

When an electric kettle is connected to a power supply with a voltage of 220V and has a power rating of 2200W, we can calculate the resistance of the heating element using the formula:

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

Substituting the given values: Resistance (R) = 220V ^ 2 / 2200W

Calculating the resistance: Resistance (R) = 220 * 220 / 2200 = 22Ω

Therefore, the resistance of the heating element in the electric kettle is 22Ω.