Practice Transformers (6.2) - Physics in The Real World (Applications)

Practise this section

9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is a transformer?
Show hintHide hint
Think about its role in electricity transmission.
Question 2.
What does Faraday's Law of Induction state?
Show hintHide hint
Consider what happens when a magnet moves near a wire.
3Question 3.
What does a transformer primarily do?
- Increases Current
- Decreases Voltage
- Changes Voltage Level
Show hintHide hint
Think about electricity flow in power lines.
4Question 4.
True or False: All transformers step up voltage.
- True
- False
Show hintHide hint
Remember the two types of transformers.
Question 5.
Design a basic transformer that steps down from 10,000V to 240V. Given that the primary coil has 1000 turns, how many turns should the secondary coil have?
Show hintHide hint
Use the transformer turns ratio to calculate the secondary turns.
Question 6.
If a step-up transformer has a primary current of 5A and a secondary current of 1A, what can you infer about the voltage change?
Show hintHide hint
What happens to current when voltage increases?

5 more questions in this section. Enroll free to practise them all.