Understanding Transformer Nameplate Ratings

On a transformer nameplate that lists two primary numbers separated by a slash, which number is the actual primary coil rating?

• The larger number

• The smaller number

• The average of the two numbers

• None of the above

What does the term "primary coil rating" refer to in a transformer?

• The voltage rating of the secondary coil

• The current rating of the primary coil

• The voltage rating of the primary coil

• The power rating of the transformer

If a transformer has a primary coil rating of 240/120, what is the actual primary coil rating?

• 240

• 120

• 360

• 60

In a transformer, what is the purpose of the primary coil?

• To step up the voltage

• To step down the voltage

• To receive the input voltage

• To provide the output voltage

Which of the following is true about the primary coil in a transformer?

• It is always connected to the load

• It is always connected to the power source

• It has more turns than the secondary coil

• It has fewer turns than the secondary coil

What is the relationship between the primary and secondary voltages in a transformer?

If a transformer has a primary voltage of 120V and a turns ratio of 2:1, what is the secondary voltage?

• 60V

• 120V

• 240V

• 480V

In a step-up transformer, how does the primary voltage compare to the secondary voltage?

• The primary voltage is higher

• The primary voltage is lower

• The primary voltage is equal

• The primary voltage is zero

What happens to the current in the secondary coil of a transformer if the voltage is stepped up?

• The current increases

• The current decreases

• The current remains the same

• The current becomes zero