Devices use a high voltage to electrocute insects

Reference no: EM13646836

In some places, insect "zappers", with their blue lights, are a familiar sight on a summer's night. These devices use a high voltage to electrocute insects. One such device uses an ac voltage of 4320 V, which is obtained from a standard 120 V outlet by means of a transformer. If the primary coil has 21 turns, how many turns are in the secondary coil?

Reference no: EM13646836

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