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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define magnetic flux.
๐ก Hint: What is the formula for magnetic flux?
Question 2
Easy
State Faraday's Law of Induction.
๐ก Hint: What does the emf depend on?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does magnetic flux measure?
- Electric current
- Rate of change of voltage
- Magnetic field strength
๐ก Hint: Think about the relationship between magnetic fields and area.
Question 2
True or False: Lenz's Law states induced current flows in the same direction as the change in magnetic flux.
- True
- False
๐ก Hint: Consider how induced currents behave.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A coil with an area of 0.1 mยฒ is in a magnetic field of 0.3 T. What is the magnetic flux when the field is perpendicular to the area?
๐ก Hint: Use the formula for magnetic flux.
Question 2
Two coils are placed close together. If coil 1 has a mutual inductance of 3 H, and the current in coil 2 changes at a rate of 4 A/s, what is the induced emf in coil 1?
๐ก Hint: Recall the formula for mutual inductance and its relationship to induced emf.
Challenge and get performance evaluation