Results
Q1. Instrument transformers normally:
Correct answer is – reduce the AC supply to 26 volts for some instruments
Q2. An autotransformer:
Correct answer is – has only one coil which is used as both primary and secondary
Q3. A step up transformer is one in which the number of turns on the secondary winding is:
Correct answer is – greater than that on the primary
Q4. A transformer which halves the voltage will have:
Correct answer is – half as many turns on the secondary as on the primary
Q5. The power output of a transformer is:
Correct answer is – the same as the power input
Q6. With no load across the output terminals of a transformer:
Correct answer is – the current flow will be negligible
Q7. If the voltage induced in the secondary windings is greater than that in the primary then the transformer is:
Correct answer is – a step up
