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Please help with parts a,b and c 5. An electric doorbell requires a 12 V, 60 Hz ac supply. (a) What turn ratio is required

Please help with parts a,b and c

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5. An electric doorbell requires a 12 V, 60 Hz ac supply. (a) What turn ratio is required on a transformer to operate from a 120 V, 60 Hz ac supply? (b) Is this a step - up or step - down transformer? (c) If the transformer is connected the wrong way around the circuit, what voltage is supplied to the doorbell

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