Practice Faraday’s Laws Of Electromagnetic Induction (1.1) - Electromagnetic Induction and Alternating

Practice: Faraday’s Laws of Electromagnetic Induction

Lesson 1.1Electromagnetic Induction and Alternating

Practise this section

11 questions

Flashcard drill
5 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
5 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What does Faraday’s First Law state?
Show hintHide hint
Think about magnetic flux change and induced voltage.
Question 2.
What represents magnetic flux mathematically?
Show hintHide hint
Consider the factors involved in magnetic field interactions.
3Question 3.
What is the statement of Faraday's First Law?
- A change in electric current induces magnetic flux.
- A change in magnetic flux induces an electromotive force (emf).
- An electric circuit creates magnetic flux.
Show hintHide hint
Remember what induces the emf.
4Question 4.
Lenz’s Law indicates that induced current will...
- True
- False
Show hintHide hint
Think about energy conservation.
Question 5.
A coil of length 2 m is moving continuously at 3 m/s through a magnetic field of strength 0.5 T at an angle of 30 degrees. Calculate the induced emf.
Show hintHide hint
Break it down into components, and don't forget to compute sine of the angle!
Question 6.
Explain how increasing the speed of a rotating coil in a generator affects the resulting voltage output. Include concepts of magnetic flux and induced emf in your explanation.
Show hintHide hint
Link the speed of rotation to rate of magnetic flux change.

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