SERIES vs PARALLEL
WHICH BULB STAYS ON?
prostudypk.com
Two Bulbs, Two Ways
SERIES
PARALLEL
✗
✗
✗
✗
B1
B2
B1
B2
series
parallel
Parallel
house wiring
1. Series
Only one path · same current
R = R₁ + R₂ · one fuses → all go off
2. Parallel
Each bulb has its own path · same voltage
1/R = 1/R₁ + 1/R₂
3. House Wiring
Parallel: one bulb off,
the rest stay on
MATRIC PHYSICS · CURRENT ELECTRICITY · PUNJAB BOARDS
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