#1. If the primary coil of a transformer has 100 turns and the secondary coil has 50 turns, what is the voltage ratio?
#2. Which of the following is not a type of transformer?
#3. What is the effect of increasing the number of turns in the primary coil of a transformer?
#4. The main application of a step-down transformer is:
#5. The magnetizing current in a transformer is:
#6. In an ideal transformer, the total losses are:
#7. The ratio of the primary voltage to secondary voltage in a transformer is equal to:
#8. If the efficiency of a transformer is 95%, and the input power is 1000W, the output power will be:
#9. The transformer windings are insulated from each other using:
#10. What happens to the efficiency of a transformer when the core material is improved?
