Two lamps, one with a thick filament and one with a thin filament, are connected in series to a battery. The voltage is greater across the lamp with the
A)thick filament.
B)thin filament.
C)same for both

Question

Quizplus · Accepted Answer

The lamps are in series, so the same current flows through both lamps. According to Ohm's Law, V = IR. Since the resistance of the thin filament lamp is higher due to its thinner filament, it will have a greater voltage drop across it compared to the thick filament lamp. Therefore, the answer is B, the thin filament.

Two Lamps, One with a Thick Filament and One with a Thin