A transformer that receives AC power at a given voltage and delivers AC power at a lower voltage is called a

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Multiple Choice

A transformer that receives AC power at a given voltage and delivers AC power at a lower voltage is called a

Transformers change voltage based on the turns ratio between windings. If the secondary has fewer turns than the primary, the output voltage is lower than the input. That’s a step-down transformer. It’s used anytime you need to reduce a higher voltage to a lower, safer level while transferring power. The power in roughly equals the power out (minus losses), so the current on the lower-voltage side increases accordingly. An isolation transformer would keep the voltage the same while providing isolation, and an autotransformer uses a single winding with taps and isn’t the simple step-down type described. A step-up would raise the voltage. So the described device is a step-down transformer.

Transformers change voltage based on the turns ratio between windings. If the secondary has fewer turns than the primary, the output voltage is lower than the input. That’s a step-down transformer. It’s used anytime you need to reduce a higher voltage to a lower, safer level while transferring power. The power in roughly equals the power out (minus losses), so the current on the lower-voltage side increases accordingly. An isolation transformer would keep the voltage the same while providing isolation, and an autotransformer uses a single winding with taps and isn’t the simple step-down type described. A step-up would raise the voltage. So the described device is a step-down transformer.

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