🔍 Key Concepts

• Transformer turns ratio and how it relates primary voltage to secondary voltage • Setting up a proportion using primary turns and secondary turns • Checking if the resulting secondary voltage should be higher or lower than the primary

💭 Think About

• Is the secondary winding turn count greater or less than the primary, and what does that imply about the secondary voltage compared to 120 VAC? • How can you write a ratio using primary voltage/primary turns and set it equal to secondary voltage/secondary turns? • Once you calculate the secondary voltage, which option is closest and makes physical sense for this type of transformer situation?

✅ Before You Answer

• Confirm the turns ratio: ( \text{Turns ratio} = \frac{N_s}{N_p} ) or ( \frac{N_p}{N_s} ) and use it consistently • Verify your voltage ratio: ( \frac{V_s}{V_p} = \frac{N_s}{N_p} ) for an ideal transformer • Double-check that the final magnitude and direction of change (step-up or step-down) match the turns ratio before picking an answer