Question

в катушке с индуктивностью 0,4 гн возникает эдс самоиндукции 20 в.найти среднюю скорость изменения тока в катушке?

Answer 1

E=L*dI/dt -> dI/dt=e/L=20/0,4=50 А/с

Answer 2

Calculation of the Average Rate of Change of Current in the Inductor

To find the average rate of change of current in the inductor, we need to use the formula:

Average Rate of Change of Current = Change in Current / Change in Time

Given information: - Inductance (L) = 0.4 H (henries) - Self-induced electromotive force (EMF) = 20 V

To calculate the average rate of change of current, we need to determine the change in current and the change in time.

Determining the Change in Current

The change in current can be calculated using the formula:

Change in Current = EMF / Inductance

Substituting the given values:

Change in Current = 20 V / 0.4 H = 50 A

Determining the Change in Time

Unfortunately, the given information does not provide the change in time. Without the change in time, we cannot calculate the average rate of change of current.

Please provide the change in time (Δt) so that we can proceed with the calculation.