What happens when a coil of wire is passed through a magnetic field?

If a coil of wire is placed in a changing magnetic field, a current will be induced in the wire. This current flows because something is producing an electric field that forces the charges around the wire.

Why is the magnetic field outside the solenoid is zero explain?

The magnetic field lines exist outside the solenoid, but the number of field lines per unit area (flux) outside the solenoid is much less compared to the number of lines per unit area (flux) inside the solenoid. Hence the magnetic field outside is so weak that it is considered to be practically zero.

What is the effect of increasing diameter of core in transformer?

Increased diameter of the core leads to increase in the main diameter on the winding. In – spite of increased diameter of the winding turns, reduced number of turns in the windings, leads to less copper loss in transformer.

What is the maximum number of steps in transformer core manufacturing?

Optimum numbers of steps are between 6 (for smaller diameter) to 15 (larger diameter). During core manufacturing of a transformer core, the main factors that are taken into consideration, Higher reliability. Reduction in the iron loss in transformer and magnetizing current. Lowering material cost and labor cost.

What are the causes of core saturation in Transformers?

Another reason for core saturation is presenting DC component in the transformer excitation voltage. The dc components may come due to the natural point voltage is high. The natural voltage may increase due to interaction between the sun’s flares, earth magnets and poor quality of natural earthing.

What is the difference between transformer and normal transformer?

Transformer’s core made up of soft iron material or powdered material etc. The core has own reluctance (in practically very low). In Normal transformer, When we apply a voltage across the secondary winding the flux is produced and the voltage is induced in the primary winding.