PSLE Science: Electricity Circuit Quiz

What is the main topic discussed in this video?

• Magnetism

• Electricity

• Water Cycle

• Photosynthesis

What is the purpose of the video?

• To analyze a past exam question

• To entertain

• To discuss history

• To sell a product

How many bulbs are connected in the circuit discussed in the video?

• Two

• Three

• Four

• Five

What happens when both switches S1 and S2 are closed?

• Only B1 lights up

• All bulbs light up

• Only B4 lights up

• No bulbs light up

In option 2, which bulb is incorrectly indicated as not lighting up?

• B3

• B2

• B1

• B4

When S1 is open and S2 is closed, which bulbs light up?

• B1, B2, B3

• B1, B2, B4

• B2, B3, B4

• B1, B3, B4

What is the correct option when both switches S1 and S2 are open?

• B3 and B4 light up

• B1 and B3 light up

• B2 and B3 light up

• B1 and B2 light up

Which circuit remains closed when both switches are open?

• Red circuit

• Blue circuit

• Purple circuit

• None

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