Ontario Grade 9 Science Class Practice Exam

How are the loads connected in a series circuit?

1. In parallel branches

2. In a loop without intersections

3. End to end creating a single path for electron flow

4. They are not directly connected

The correct answer is: End to end creating a single path for electron flow

In a series circuit, the loads (resistors, batteries, etc) are connected one after the other in a single path. This means that the current flowing through one load will also flow through the other loads, creating a continuous path for the electrons to flow. This is known as a series connection. Option A is incorrect because in a parallel circuit, the loads are connected in separate branches, allowing the current to split and follow multiple paths. Option B is incorrect because a series circuit does not form a loop and cannot have any intersections. Option D is incorrect because in a series circuit, the loads are directly connected in a single path, allowing the current to flow through each one consecutively.