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Question: 1 / 400

For a power transformer with 60 windings on the primary and 10 on the secondary, what is the output of the secondary when supplied with 120VAC?

5 VAC

10 VAC

20 VAC

To determine the output voltage of the secondary winding in a transformer, you can use the transformer equation that relates the primary and secondary voltages to the number of windings on each side. This equation is expressed as:

\[ \frac{V_p}{V_s} = \frac{N_p}{N_s} \]

Where:

- \( V_p \) is the primary voltage

- \( V_s \) is the secondary voltage

- \( N_p \) is the number of primary windings

- \( N_s \) is the number of secondary windings

In this specific case, you are given:

- \( N_p = 60 \) (primary windings)

- \( N_s = 10 \) (secondary windings)

- \( V_p = 120 \) VAC (input voltage)

Using the equation, we rearrange it to find the secondary voltage \( V_s \):

\[ V_s = V_p \times \frac{N_s}{N_p} \]

Now, substituting the known values:

\[ V_s = 120 \, \text{VAC} \times \frac{10}{60} \]

This simplifies to:

\[ V_s = 120 \, \

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60 VAC

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