The cores used in transformers are laminated | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) In a transformer, energy is lost due to various factors, one of which is the formation of eddy currents in the iron core. When the magnetic flux t

Vedclass · Accepted Answer

reduce eddy current losses in the core.

Vedclass · Answer

(D) In a transformer, energy is lost due to various factors, one of which is the formation of eddy currents in the iron core. When the magnetic flux through the core changes, it induces circulating currents (eddy currents) within the bulk of the core material, leading to significant heat dissipation ($I^2R$ loss). By laminating the core—using thin, insulated sheets of metal instead of a solid block—the path for these eddy currents is restricted. This increase in resistance significantly reduces the magnitude of the eddy currents, thereby minimizing the energy loss in the form of heat.

The cores used in transformers are laminated to

Similar Questions

Explain eddy currents using the example of a small magnet falling through an aluminium pipe.

$A$ metal sheet is placed in a magnetic field that changes from zero to maximum. If the figure shows the direction of eddy currents,then the direction of the magnetic field is:

In which of the following devices,the eddy current effect is not used?

The dynamo core is laminated because:

$A$ bar magnet is released from rest coaxially along the axis of a very long,vertical copper tube. After some time,the magnet:

Vedclass Test Series

Exam Paper Generator

Online Exam Module