Practice Factors Affecting Motor Strength - 5.5.4 | Module 5: Electricity and Magnetism | IB Board Grade 9 Physics
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5.5.4 - Factors Affecting Motor Strength

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does increasing the current in a motor do?

πŸ’‘ Hint: Think about the relationship between current and magnetic fields.

Question 2

Easy

Name one factor that affects motor strength.

πŸ’‘ Hint: Recall the acronym CMTAS.

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 effect does increasing the current in a motor have?

  • Weakens the magnetic field
  • Strengthens the magnetic field
  • Has no effect

πŸ’‘ Hint: Think about how electricity interacts with magnetism.

Question 2

True or False? A larger coil area can help increase a motor's effectiveness.

  • True
  • False

πŸ’‘ Hint: Consider how force distribution works.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the increase in motor torque if the current is doubled in a motor whose original torque is 10 Nm. Assume linearity in torque to current relation.

πŸ’‘ Hint: Think about the relationship between current and torque.

Question 2

Explain how adding more turns in the coil impacts the overall efficiency of an electric motor used in a crane lifting capacity.

πŸ’‘ Hint: Connection between coil structure and performance.

Challenge and get performance evaluation