A battery, a capacitor, a bulb, and a switch are in the circuit as shown. Unlike most real bulbs, the resistance of the bulb in this question does not change as the current through it changes. The switch is initially open as shown, and the capacitor is uncharged. C E R S Which statement correctly describes the bulb after the switch is closed? Assume the
Please complete all parts, each part is needed in order to complete the next question. The parts correaltes with eachother.
(part 1 of 2)
A battery, a capacitor, a bulb, and a switch
are in the circuit as shown. Unlike most real
bulbs, the resistance of the bulb in this question does not change as the current through
it changes. The switch is initially open as
shown, and the capacitor is uncharged.
C E
R
S
Which statement correctly describes the
bulb after the switch is closed? Assume the
battery is ideal (it has no internal resistance)
and the connecting wires have no resistance.
1. The bulb is bright and remains bright.
2. None of these is correct.
3. At first the bulb is bright and it gets
dimmer and dimmer until it goes off.
4. The bulb is dim and remains dim.
5. At first the bulb is dim and it gets brighter
and brighter until the brightness levels off.
(part 2 of 2)
The bulb will initially be bright because a large amount of current is passing through it due to the capacitor. However, as it stays on, some of the energy that is needed to keep the current flowing is given off as light.
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