Question 466Electricity & Electronics - QMED

The correct answer is C) Secondary voltage is decreased and current is increased. In a step-down transformer, the secondary voltage is lower than the primary voltage, while the secondary current is higher than the primary current. This is due to the inverse relationship between voltage and current, as described by Ohm's law and the principle of conservation of power. The lower secondary voltage results in a higher secondary current to maintain the same power transfer from the primary to the secondary side of the transformer. The other options are incorrect because: A) Both secondary voltage and current would decrease in a step-down transformer. B) Both secondary voltage and current would increase in a step-up transformer, not a step-down transformer. D) The secondary voltage would decrease, and the secondary current would increase in a step-down transformer.