O-LevelPhysicsMagnetism5054/11 · May/June 2021 · Q361 Mark
A student uses a transformer to light a filament lamp using a 230 V a.c. supply. The lamp has a maximum voltage rating of 6.0 V. What happens when the circuit is switched on?
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AThe lamp does not light at all.
BThe lamp lights at normal brightness.
CThe lamp lights dimly.
DThe lamp lights up brightly and then goes out.
✓ Correct answer
D: The lamp lights up brightly and then goes out.
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