How do you determine the difference in voltage when calculating turns ratio?

To determine the difference in voltage when calculating the turns ratio, you subtract the input voltage from the output voltage. The turns ratio is a critical concept in understanding transformers and electrical circuits. It is defined as the ratio of the number of turns in the primary winding to the number of turns in the secondary winding, and it directly relates to how voltage is transformed through the device.

When you want to find the difference in voltage, you are effectively looking at how much the voltage changes as it passes through the transformer. By subtracting the input voltage from the output voltage, you can ascertain the voltage transformation that is taking place. This helps in analyzing the performance of the transformer and confirming that it operates within expected parameters.

The other options presented do not correctly describe the process of determining the voltage difference in this context. For instance, adding the input and output would not yield meaningful insights into voltage transformation, nor would multiplying them. Measuring only the input voltage neglects the output voltage entirely, which is crucial for calculating the difference necessary to understand the transformer’s operation.