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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the relationship between electric current and magnetic fields?
π‘ Hint: Think about what happens when you pass current through a wire.
Question 2
Easy
Define a solenoid in simple terms.
π‘ Hint: Consider its shape and what it does.
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 is created around a current-carrying conductor?
- An electric field
- A magnetic field
- No effect
π‘ Hint: Think about what a compass needle would do around a wire with current.
Question 2
True or False: A solenoid only works with constant direct current.
- True
- False
π‘ Hint: Consider how voltages can be alternated.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A solenoid is wound with 100 turns and carries a current of 2A. What magnetic field strength does it produce at its center?
π‘ Hint: Use the constant values for ΞΌβ and rearrange the equation according to the number of loops and current.
Question 2
An electric motor uses a coil with a magnetic field of 0.5T. If the current is increased to 3A, what would be the new strength of the magnetic field assuming a linear relationship?
π‘ Hint: Consider how an increase in current affects the magnetic field strength.
Challenge and get performance evaluation