Calculate the initial current in an inductor having inductance 4000 H, number of turns is 200 and the flux changes from 760 to 800 Wb. Current changes to 7A.

Inductance in a DC Circuit topics include: inductive and non-inductive circuits, ferromagnetic cored inductor, inductive circuit growth, growth and decay analysis, lr networks transients, mutual inductance, coupling coefficient, coils connected in series, inductor and inductance types. In a DC circuit, an inductor acts like a short circuit when the current is constant. This means that the current flows through it without any voltage drop.  Here are some other things an inductor does in a DC circuit: It can be thought of as a temporary current source. It always wants to maintain current... Show more

Inductance in a DC Circuit topics include: inductive and non-inductive circuits, ferromagnetic cored inductor, inductive circuit growth, growth and decay analysis, lr networks transients, mutual inductance, coupling coefficient, coils connected in series, inductor and inductance types.

In a DC circuit, an inductor acts like a short circuit when the current is constant. This means that the current flows through it without any voltage drop. 

Here are some other things an inductor does in a DC circuit:
It can be thought of as a temporary current source.
It always wants to maintain current through its coil as a function of the energy stored within its magnetic field.
It acts like an ordinary connecting wire, its Resistance is zero.
Once the storage phase has finished, the current, iL, that flows through it is stable, iL = V / R.
No self induced e.m.f. is produced and vL is zero. 

In a DC circuit, you can increase inductance by:
Increasing the number of “turns” in the coil
Increasing the diameter of the coil
Decreasing the length of the coil
Increasing the permeability of the core material 

The amount of induced voltage (VL) is proportional to the number of turns in the coil and the rate of change of the magnetic flux (dϕ/dt).

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