Q6 of 14 Page 56

Thick insulated copper wires are used in the primary coil of a step up transformer and in the secondary of a step-down transformer. What is the necessity of doing this? Why is it so?

The thicker the wire, the greater is its cross-section(A), the lesser is its resistance(because of ). So, the power dissipated is reduced. This is important because one of the main purposes of a transformer is power transfer at required voltages.


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