Which coil of a step-up transformer is made thicker and why?
Question
Which coil of a step-up transformer is made thicker and why?
Solution
In a step-up transformer, the coil that is made thicker is the primary coil. This is because the primary coil is the one that receives the initial input of electrical energy, and it needs to be able to handle this input without overheating or suffering damage. The thickness of the wire in the coil is directly related to its ability to carry current - the thicker the wire, the more current it can carry. Therefore, in order to safely and effectively handle the input current, the primary coil of a step-up transformer is made thicker.
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