How does the lines of flux travel within the magnet?

The general direction for the magnetic flux flow is from the North ( N ) to the South ( S ) pole. In addition, these magnetic lines form closed loops that leave at the north pole of the magnet and enter at the south pole. Magnetic poles are always in pairs.

What happens if the number of loops in the primary coil and that in the secondary coil in a transformer are the same?

We find that the ratio of the induced EMF to the input voltage is the same as the ratio of the turns on the secondary coil to the turns on the primary coil. If the number of turns on the secondary coil is less than the number on the primary coil, then the output voltage will be smaller than the input voltage.

Does the primary of a transformer have an iron core?

Structure of a transformer A basic transformer is made from two coils of wire, a primary coil from the alternating current (ac) input and a secondary coil leading to the ac output. The coils are not electrically connected. Instead, they are wound around an iron core.

How can we reduce the flux leakage in transformer?

Statement ( A ) : Flux leakage in a transformer can be minimized by winding the primary and secondary coils one over the other.

What are magnetic lines of flux?

Magnetic flux is a measurement of the total magnetic field which passes through a given area. If we use the field-line picture of a magnetic field then every field line passing through the given area contributes some magnetic flux. The angle at which the field line intersects the area is also important.

What are the lines surrounding the magnets What do the lines indicate?

The lines that we have mapped out around the magnet, called the magnetic lines of force, indicate the region in which the force of the magnet can be detected. This region is called the magnetic field.

Why are the number of turns in primary and secondary coil different in all transformers?

Because that is how different voltages are derived. 200 turn primary and 100 turn secondary cuts the voltage in half. 100 turn primary and 1000 turn secondary will kick the voltage up 10X. Not all transformers have different turns.

How does the transformer transfer energy from primary to secondary?

A basic transformer consists of two coils that are electrically separate and inductive, but are magnetically linked through a path of reluctance. If the second coil circuit is closed, a current flows in it and thus electrical energy is transferred magnetically from the first to the second coil.

What is primary coil in transformer?

n. A coil to which the input voltage is applied in an inductively coupled circuit, especially a transformer.

What causes flux leakage?

The principle of flux leakage is used to detect casing corrosion, since flux leakage is caused by rapid changes in the thickness of the casing and by pits and holes in either the internal or external wall. Flux leakage distorts the magnetic-flux lines and induces a signal into an electric coil moving past it.

How is magnetic leakage reduce?

Magnetic leakage is reduced to a minimum by sectionalizing and interleaving the primary and secondary windings.