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    You are here:Home > News > Why is the diameter of the primary coil small and the diameter of the secondary coil thick?

    Why is the diameter of the primary coil small and the diameter of the secondary coil thick?

    Answer: The transformer is an energy conversion device, and the energy will not increase or decrease. The primary coil is connected to a higher voltage of the mains, and the current flowing through it is smaller, so the diameter of the coil used can also be smaller. And the voltage of the secondary coil is low, and the current flowing is large, so a larger wire diameter should be used.

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