4 - MOVING CHARGES AND MAGNETISM
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Practice Questions
Test your understanding with targeted questions
Who discovered that electric current affects a magnetic compass needle?
💡 Hint: Look for the physicist known for electromagnetism.
What do iron filings demonstrate when sprinkled near a current-carrying wire?
💡 Hint: Think about visual patterns created around something.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What did Oersted demonstrate about electric currents?
💡 Hint: Recall the compass needle experiment.
True or False: A magnetic field can exist without current.
💡 Hint: Consider permanent magnets.
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Challenge Problems
Push your limits with advanced challenges
Explain how Oersted's discovery paved the way for modern technologies. Provide at least three examples.
💡 Hint: Think about the devices and technologies you use today that rely on electromagnetism.
Demonstrate through calculations how increasing current in a coil can alter the magnetic field. Given a coil with 10 turns, what is the change in the magnetic field if the current rises from 2A to 4A?
💡 Hint: Consider the relationship between current and magnetic field strength.
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