Practice Inductance (6.7) - ELECTROMAGNETIC INDUCTION

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9 questions

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3 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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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does inductance measure in a coil?
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Think about its relationship with current and flux.
Question 2.
What is the unit of inductance?
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It's named after a scientist.
3Question 3.
What is the SI unit of inductance?
- Volt
- Ampere
- Henry
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Think about what unit is named after a scientist.
4Question 4.
True or False? Self-inductance refers to the induction of emf in a coil caused by another coil's current.
- True
- False
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Focus on the 'self' in self-inductance.
Question 5.
An inductor has a self-inductance of 3 H. If the current through it changes from 2 A to 5 A in 1 second, calculate the induced emf.
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Find the rate of change of current.
Question 6.
Two coils have mutual inductance of 0.75 H. If coil A’s current increases from 1 A to 4 A in 0.5 seconds, find the induced emf in coil B.
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Rate of change influences the induced emf.

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