What is a choke inductor?

A Choke is an Inductor type with or without a ferromagnetic core, used to block, hence “choke”, alternating current (AC) in a circuit by limiting the rate of change over a specified frequency range, while allowing passage of lower frequency AC or direct current (DC).

What does an inductor coil do?

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a coil.

What are choke coils used for?

Choke Coils Choke coils, also known as choking coils, are low-resistance electrical coils with high inductance that are used to block high-frequency alternating currents (AC) of electricity while allowing low-frequency direct currents (DC) to pass through.

Is choke coil an inductor?

An inductor is a principal electronic component similar to a choke, but they are not interchangeable—simply put, all chokes are inductors, but not all inductors are chokes. Inductors provide various functions but primarily store electrical energy from currents as a magnetic field.

What is the principle of choke coil?

Hint: A choke coil works by the principle of self induction. Its main function is to provide AC resistance to the circuit. At the same time, it does not allow any resistance to the DC current.

What is a good choke coil?

The correct option (a) Nearly zero Explanation: Power factor of good choke coil is nearly zero as phase difference ɸ between voltage & current is almost 90°.

Why choke coil Cannot be used in DC?

It will act as a short circuit when direct current is applied across the inductor. The inductor works on the principle of changing electric flux. When DC is used in an inductor there will be no change in magnetic flux since DC does not have zero frequency. Therefore, the inductor acts as a short circuit in DC.

Can AC pass through inductor?

The inductor stores electrical energy in the form of magnetic energy. The inductor does not allow AC to flow through it, but does allow DC to flow through it.