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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula to find the magnetic field at the center of a coil?
π‘ Hint: Consider the number of turns and how the current contributes.
Question 2
Easy
Which hand rule is used to determine the direction of magnetic field lines?
π‘ Hint: Think about how you would position your thumb and fingers.
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 the expected direction of the magnetic field around a wire carrying current?
- Cylindrical
- Conical
- Cubic
π‘ Hint: Think about how the field shapes around the wire.
Question 2
True or False: A current-carrying wire experiences no force when it is parallel to the magnetic field.
- True
- False
π‘ Hint: Reflect on the relationship between angle and force.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A wire carrying 15 A runs perpendicular to a magnetic field of 0.3 T. How much force does it experience over a 2 m length?
π‘ Hint: Use the force equation considering the angle.
Question 2
Two parallel wires, one carrying 10 A and the other 5 A, are 0.3 m apart. Calculate the force per meter on each wire.
π‘ Hint: Remember to apply the sign conventions based on current directions.
Challenge and get performance evaluation