Practice Circuit Breakers - 5.2.6.2 | Module 5: Electricity and Magnetism | IB Board Grade 9 Physics
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5.2.6.2 - Circuit Breakers

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary function of a circuit breaker?

πŸ’‘ Hint: Think about what happens when too much current flows.

Question 2

Easy

True or False: Circuit breakers can be replaced once tripped.

πŸ’‘ Hint: Consider how a fuse differs from a circuit breaker.

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 a circuit breaker designed to do?

  • A. Allow excess current to flow
  • B. Interrupt flow during overheating
  • C. Protect against voltage spikes

πŸ’‘ Hint: Consider the role of a circuit breaker in a power outage.

Question 2

True or False: Circuit breakers need to be replaced after tripping.

  • True
  • False

πŸ’‘ Hint: Think about the differences between circuit breakers and fuses.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a basic electrical circuit system that integrates a circuit breaker. What are the specifications you would choose for the breaker, and what might cause it to trip?

πŸ’‘ Hint: Consider the wattage of common household appliances.

Question 2

If a circuit requires 10 amps but the circuit breaker is rated at 15 amps, what could potentially happen and how could this endanger safety?

πŸ’‘ Hint: What happens when the demand exceeds the capacity?

Challenge and get performance evaluation