ICSE Class 10 Physics
Question 11 of 20
Solved 2016 Question Paper ICSE Class 10 Physics — Question 20
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Question Question 4(e)
Which coil of a step up transformer is made thicker and why? [2]
Primary Coil is made thicker than the secondary coil in a step up transformer. As current in primary coil is more than in the secondary coil so the wire in the primary coil is kept thicker.
The use of thicker wire in a coil reduces it's resistance and therefore, reduces the loss of energy as heat in that coil.