A-LevelPhysicsD.C. circuits9702/12 · May/June 2016 · Q331 Mark
Two lamps are connected in series to a 250V power supply. One lamp is rated 240V, 60 W and the other is rated 10V, 2.5W. Which statement most accurately describes what happens?
ABoth lamps light at less than their normal brightness.
BBoth lamps light at their normal brightness.
COnly the 240 V lamp lights.
DThe 10 V lamp blows.
✓ Correct answer
B: Both lamps light at their normal brightness.
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