Practice Circuit Breakers (5.2.6.2) - Electricity and Magnetism - IB Board Grade 9 Physics
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Circuit Breakers

Practice - Circuit Breakers

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Practice Questions

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Question 1 Easy

What is the primary function of a circuit breaker?

💡 Hint: Think about what happens when too much current flows.

Question 2 Easy

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

💡 Hint: Consider how a fuse differs from a circuit breaker.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

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

💡 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

💡 Hint: Think about the differences between circuit breakers and fuses.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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?

💡 Hint: Consider the wattage of common household appliances.

Challenge 2 Hard

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?

💡 Hint: What happens when the demand exceeds the capacity?

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