What is Wattless Current?

Answer : Temporary magnets are made out of soft metals that retain their magnetism only when they are near a permanent magnetic field or an electrical current. In the presence of a magnetic field, they become magnetised. Paperclips, iron nails, and other similar things are examples of temporary magnets.

An electromagnet is another sort of transient magnet that only retains magnetism when an electrical current is passed through it. 

Electromagnets are formed of coil wire with an iron core and are available in a wide range of strengths and polarities. Simple and complex objects, such as doorbells and motors, use electromagnets.Within an alternative current circuit, wattless current generally occurs only when the utilized regular output is equivalent to zero. If the normal energy consumption within the circuit is 0, the current within the alternating current circuit is observed to be wattled. This current also is known as Idle current.

A wattless current is an AC component which requires no power in a circuit. The equation gives the average energy dissipated inside an AC circuit.

P = VI cos ϕ.

Where,

V – The applied voltage to the circuit.

I – The amount of current flowing through the circuit.

ϕ – The difference in phase among current and voltage.