NEET 2006 Physics question

The core of a transformer is laminated because:-

(1)Energy losses due to eddy currents may be minimisedCorrect
(2)The weight of the transformer may be reduced
(3)Rusting of the core may be prevented
(4)Ratio of voltage in primary and secondary may be increased

Answer: (1)

Solution

The changing flux induces eddy currents in the iron core, which dissipate energy as heat. Making the core from thin insulated laminations breaks up the paths of these currents (increases the resistance of the eddy-current

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-089557