Practice Motional Electromotive Force (6.6) - ELECTROMAGNETIC INDUCTION

Practice: MOTIONAL ELECTROMOTIVE FORCE

Lesson 6.6ELECTROMAGNETIC INDUCTION

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is motional emf?
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Think about how movement interacts with magnetic fields.
Question 2.
Write down the formula for calculating motional emf.
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Refer to the variables representing magnetic strength, length, and velocity.
3Question 3.
What does motional emf depend on?
- A. The strength of the magnetic field
- B. The length of the conductor
- C. The speed of the conductor
- D. All of the above
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Consider each factor that affects the induced current.
4Question 4.
Does a stationary conductor in a varying magnetic field experience induced emf?
- True
- False
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Think about Faraday's law and its application.
Question 5.
A strip of metal moves through a uniform magnetic field of strength 0.6 T. If it has a length of 2 m and moves at a speed of 4 m/s, what is the induced emf?
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Identify each component in the formula.
Question 6.
Two parallel rails in a horizontal track are connected at one end. A conducting bar moves along the rails perpendicular to a magnetic field. If the resistance in the circuit created is 2 ohms and the induced emf is measured at 10 V, calculate the current flowing through the circuit.
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Apply the relationship between voltage, current, and resistance.

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