Halogen Bulbs
Halogen bulbs have some differences from standard incandescent lightbulbs. They are generally smaller, the filament runs at a higher temperature, and they have a quartz (rather than glass) envelope. They may also operate at lower voltage. Consider a 12 V, 50 W halogen bulb for use in a desk lamp. The lamp plugs into a 120 V, 60 Hz outlet, and it has a transformer in its base.
What will be the voltage across the bulb if the lamp’s power cord is accidentally plugged into a 240 V, 60 Hz outlet?
A. 2 V
B. 24 V
C. 36 V
D. 48 V
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College Physics
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