Question

Через спираль электрической плитки за 5 мин прошёл электрический заряд, равный 900 Кл. Какова мощность плитки, если напряжение в сети постоянно и равно 220 В? Введите ответ в Вт.

Answer 1

T = 5 мин = 300 с     Решение:
q = 900 Кл               I = q/t                    I = 900 / 300 = 3 A
U = 220 B                N = I*U                 N = 220 * 3 = 660 Вт 
N - ?

Answer 2

Calculation of Power

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

Power (P) = Electric Charge (Q) / Time (t)

Given that the electric charge is 900 KiloCoulombs (900,000 Coulombs) and the time is 5 minutes (300 seconds), we can substitute these values into the formula:

P = 900,000 C / 300 s

Now, we need to convert the time from minutes to seconds:

P = 900,000 C / 300 s = 900,000 C / (5 * 60 s) = 900,000 C / 300 s = 3,000 C/s

Therefore, the power of the electric stove is 3,000 Watts (W) when the voltage in the network is constantly 220 Volts (V).

Please note that the calculation assumes that the electric charge is evenly distributed over the 5-minute period and that there are no other losses or inefficiencies in the system.