In a coil with an inductance of 10-4 H, an induction emf of 20 V appears, calculate the rate of change of the current in this coil.
We are given the following data:
L = 10 ^ -4 H,
E = 20 V.
According to the condition of the problem, we need to find: ΔI / Δt.
In order to do this, you need to write the following formula:
E = L * ΔI / Δt;
We transform to find:
ΔI / Δt = E / L;
Substitute the values:
ΔI / Δt = 20/10 ^ -4;
ΔI / Δt = 200000 A / s.
Answer: ΔI / Δt = 200000 A / s.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.