Does an inductor absorb electrical energy?

Answer 1

Yes, both capacitors and inductors are capable of storing energy. Capacitors store electrical energy in form of electrical charge and inductors in form of magnetic field.

- Neeraj Sharma

Answer 2

When you pass a current through an inductor it builds up a magnetic field. When the

current source is removed, the magnetic field collapses. The collapsing field induces a

voltage in the inductor, returning energy to the circuit. The polarity of the induced

voltage is opposite the polarity of the original magnetizing current.

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-- When you start pushing current through it, the current rises slower than you push it,

because building up the magnetic field takes energy. That energy is stored in the magnetic

field.

-- When you stop pushing current through it, the current keeps flowing for a while anyway.

That's the stored energy pouring out of the magnetic field.

Answer 3

As current flows in the inductor, a magnetic field is produced. If the current is turned off, as the magnetic field collapses, it induces a voltage in the inductor windings, like a generator. Thus the inductor stores energy in the form of a magnetic field.

Answer 4

Yes, inductors can be said to "absorb" or "store" electrical energy. This energy is stored in the magnetic field that forms around the windings as current flow through the inductor increases. When current through the inductor begins to decrease, the field begins to collapse. The collapsing field generates an electromotive force (EMF) in the windings that opposes the decrease in current. In this way, energy that was stored in the inductor is returned to the circuit, but an a later time. The "delay" here sets the stage for phase shift, but that's another question.

Answer 5

Inductors "store current", so to speak, by maintaining a magnetic field that opposes a change in current.

If you have constant current from source through inductor to load, and you then stop the source current, the inductor will attempt to continue to supply that same current. Since the magnetic field will start to collapse, the current will start to decrease, but it will not be a sudden thing - it will be related to the size of the inductor in henrys.

Note that, for this to work, there must be a path for the inductor's current loop when the supply stops supplying current. If not, the inductor's voltage will attempt to go very very high negative, potentially damaging things. In a typical switching power supply, this switch current sink is a schottky diode.

Answer 6

When a capacitor is connected across the battery electron leave negative terminal and flow on to one of the plate of the capacitor,since they can not pass through the dielectric media they accumulate on negative plate it self.The positive terminal of the battery attracts all of the electrons from other positive plate of capacitor and leaves it with shortage of electrons or positive charge.This process will continue until charge potential is equivalent to battery potential.the capacitor is said to be charged, disconnect the battery and capacitor stores the electrical energy.

When a battery is connected to the inductor current flow to the conductor of an inductor it causes magnetic field set up around it. Lenz's law tells that when ever source current changes, it induces a current into inductor that is in opposition to main current flow.This induced current is said be an energy stored electromagnetic field but unlike capacitor the moment switch off the supply to inductor the magnetic field collapses,and no more induced current.

Answer 7

Inductance (L) results from the magnetic field forming around a current-carrying conductor which tends to resist changes in the current. Electric current through the conductor creates a magnetic flux proportional to the current. A change in this current creates a corresponding change in magnetic flux which, in turn, by Faraday's Law generates an electromotive force (EMF) that opposes this change in current. Inductance is a measure of the amount of EMF generated per unit change in current. For example, an inductor with an inductance of 1 henry produces an EMF of 1 volt when the current through the inductor changes at the rate of 1 ampere per second. The number of loops, the size of each loop, and the material it is wrapped around all affect the inductance.

Stored energy:

The energy (measured in joules, in SI) stored by an inductor is equal to the amount of work required to establish the current through the inductor, and therefore the magnetic field.

This is given by:

Estored = 0.5 * L * I^2

where L is inductance and I is the current through the inductor.

This relationship is only valid for linear (non-saturated) regions of the magnetic flux linkage and current relationship.

Answer 8

inductor is opposes the current and the electrical energy is stored in the inductor in the form of magnetic energy

Answer 9

A capacitor stores energy in the electric field between the plates. An inductor stores energy in the magnetic field that is built up.

Answer 10

In the magnetic field surrounding it.