as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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explain what a circuit breaker is.
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a circuit breaker is a mechanical switch designed to prevent an overloaded circuit from damaging equipment or causing a fire. it operates by automatically switching off when it detects excessive current in an electrical system.
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