Understanding Transformer Nameplate Ratings

Front

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

Back

The smaller number

Front

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

Back

The voltage rating of the primary coil

Front

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

Back

120

Front

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

Back

To receive the input voltage

Front

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

Back

It is always connected to the power source

Front

Back

Front

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

Back

240V

Front

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

Back

The primary voltage is lower.

Front

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

Back

The current decreases