Can a transformer work without an iron core?

Yes, there is still induction even if you remove the core of the transformer. The intended use of a transformer is to take high voltage AC on the primary and induce current into the secondary winding, usually for the purpose of stepping down the voltage to something reasonable for consumer use.

What is the purpose of iron core in a transformer?

In real transformers, the two coils are wound onto the same iron core. The purpose of the iron core is to channel the magnetic flux generated by the current flowing around the primary coil, so that as much of it as possible also links the secondary coil.

Can you make a transformer without a core?

Although if the wires on the primary and secondary side are of the same length, only electromagnetic radiation will be picked up, which is very minimal. The answer is NO, by definition, you cannot obtain a transformer without a core, but YES, you can still get electromagnetic induction (which is an other story).

What will be the effect on hysteresis loss of transformer if the iron core is replaced by air core?

Therefore hysteresis loss is zero for an air-core transformer.

What is core loss transformer?

What is the core loss in Transformer? Core loss, also known as Iron Loss, is ultimately caused by the alternating magnetic flux in the core. Furthermore, iron loss is split into hysteresis and eddy current losses.

What causes hysteresis loss?

Hysteresis losses are caused by the magnetization and demagnetization of a core as current flows in reverse directions and it is released in the form of heat.

How does the size of a transformer depend on frequency?

The higher the frequency, the less the magnetic flux of the transformer, the smaller the core section of the transformer under the same magnetic density, and the smaller the size of the corresponding transformer.

Is eddy current AC or DC?

Thus eddy currents are a cause of energy loss in alternating current (AC) inductors, transformers, electric motors and generators, and other AC machinery, requiring special construction such as laminated magnetic cores or ferrite cores to minimize them.