Standard Science Primary 6 Energy

Study the circuit diagram below. If Bulb B1 fuses, which of the other bulbs will remain lit?

A Only B2
B Both B2 and B3
C Only B3
D None of the bulbs
Show Worked Solution

Worked Solution

Step 1: Identify that B1 is in a series position on the main wire. Step 2: A fused bulb in series creates an open circuit. Step 3: Electric current cannot flow through any part of the circuit if the main path is broken.

Correct answer: None of the bulbs

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