WorksheetsUnderstanding Transformer Nameplate Ratings
Total questions: 9
Worksheet time: 5mins
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?
Vp=Vs
Vp>Vs
Vp<Vs
Vp=Vs
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
