Ontario Grade 9 Science Class Practice Exam

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What is a parallel circuit?

  1. A circuit with a single path for electron flow

  2. A circuit with a broken path, preventing electron flow

  3. A circuit in which loads are connected by branches, offering multiple paths for electron flow

  4. A circuit where electrons cannot flow

The correct answer is: A circuit in which loads are connected by branches, offering multiple paths for electron flow

A parallel circuit is a circuit where the loads are connected by branches, allowing for multiple paths for electron flow. This differs from a series circuit, where the loads are connected in a single path, as in option A. Option B is incorrect because a broken path would prevent any electron flow at all, making it an open circuit. Option D is also incorrect because in a functional circuit, electrons are always flowing.

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