Practice Transformer (6.1) - Electromagnetic Induction and Alternating

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8 questions

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Exercise
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6 sample questions

Question 1.
What is the primary function of a transformer?
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Think about how electricity is transmitted over long distances.
Question 2.
Name the two types of transformers.
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Consider whether they increase or decrease voltage.
3Question 3.
What does a transformer do?
- Increases voltage
- Decreases voltage
- Both increase and decrease voltage
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Think of the different applications of transformers.
4Question 4.
True or False: Transformers can work with direct current (DC).
- True
- False
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Recall the principles of electromagnetic induction.
Question 5.
A transformer has a primary voltage of 240V and 100 turns in the primary coil. If it is a step-down transformer with a secondary voltage of 120V, how many turns are in the secondary coil?
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Apply the turns ratio concepts.
Question 6.
If a given transformer's efficiency is 92% and the input power is 200W, what is the output power?
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Use the efficiency formula to calculate output power.

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