A circuit has two bulbs, X and Y, connected in parallel. Each bulb has its own switch on its branch. If Switch X is closed and Switch Y is open, what happens?
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Worked Solution
Step 1: In a parallel circuit, current can flow through multiple independent paths (branches).
Step 2: Closing Switch X completes the circuit for Bulb X's branch, so it lights up.
Step 3: Switch Y is open, so Bulb Y's branch is an open circuit, and it will not light up.
Correct answer: Only Bulb X will light up.
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