Practice EXERCISES - 5.7 | 5. MAGNETISM AND MATTER | CBSE 12 Physics Part 1
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5.7 - EXERCISES

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the formula for the torque on a magnetic moment in a magnetic field?

πŸ’‘ Hint: Consider the relationship between force and rotational motion.

Question 2

Easy

If a solenoid has 500 turns and carries a current of 2A, what is its magnetic moment?

πŸ’‘ Hint: Remember to calculate the area to complete this problem!

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 the torque depend on when calculating for a magnetic dipole?

  • Angle between m and B
  • Length of the magnet
  • Temperature

πŸ’‘ Hint: Think about how two vectors interact.

Question 2

Gauss’s law for magnetism states that the net magnetic flux through any closed surface is what?

  • True
  • False

πŸ’‘ Hint: Reflect on what happens inside and outside a magnet.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a problem where a bar magnet with a magnetic moment of 0.64 J/T is subjected to a magnetic field. Calculate the torque when at angles of 45 degrees and 135 degrees.

πŸ’‘ Hint: Sine values will play a key role.

Question 2

Create a scenario with a solenoid of unknown area but known turns and current. Give an equation that would allow a student to solve for its magnetic field strength given changes in current.

πŸ’‘ Hint: Using direct relationships will be very helpful.

Challenge and get performance evaluation