A doorbell requires a current of 0.4 A and 6 volts. It is connected to a transformer with 2000 turns in the primary coil, which is plugged into a 120 Vac voltage source. Find the number of turns necessary in the secondary coil, and the current in the primary coil. Assume 100% efficiency.
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The doorbell that requires a voltage of 6 V and a current of 0.4 A to operate is connected to a transformer. The primary coil of the transformer has 2000 turns and the voltage across the primary coil is 120 V. It is assumed that there is no loss in the transformer as it...
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