Question

Электрический чайник рассчитан на напряжение 220В и силу тока 0,5 А . Вычислите работу спирали электрочайника за 10минут.

Answer 1

A=U·I·Δt=220·0,5·10·60=66000 Дж

Answer 2

A = U * I * t

U - напряжение ( 220 В )
I - сила тока ( 0,5 А )
t - время ( 10 мин = 600 с )

A = 220 * 0,5 * 600 = 66000 Дж = 66 кДж

Answer 3

Calculation of the Work Done by the Electric Kettle

To calculate the work done by the electric kettle, we need to use the formula:

Work (W) = Power (P) x Time (t)

The power of the electric kettle can be calculated using the formula:

Power (P) = Voltage (V) x Current (I)

Given that the voltage is 220V and the current is 0.5A, we can calculate the power:

Power (P) = 220V x 0.5A = 110W

Now, we can calculate the work done by the electric kettle in 10 minutes:

Time (t) = 10 minutes = 10 x 60 seconds = 600 seconds

Work (W) = Power (P) x Time (t) = 110W x 600s = 66,000 Joules

Therefore, the work done by the electric kettle in 10 minutes is 66,000 Joules.