Electricity produced in a generating plant passes through a large step-up transformer. This step-up transformer produces the high voltages needed to send electric power long distances across the countryside. Which of the following is transferred from the transformer's primary coil to its secondary coil while the transformer is operating?
A. Negative electric charges and power.
B. Positive electric charges, negative electric charges, and power.
C. Positive electric charges and power.
D. Power alone.
Answer:D
Electricity produced in a generating plant passes through a large step-up transformer. This step-up transformer produces the high voltages needed to send electric power long distances across the countryside. Which of the following is transferred from the transformer's primary coil to its secondary coil while the transformer is operating?
A. Negative electric charges and power. B. Positive electric charges, negative electric charges, and power. C. Positive electric charges and power. D. Power alone.