Questions 19-20 refer to the circuit below containing a capacitor, a bulb and a
ID: 1583169 • Letter: Q
Question
Questions 19-20 refer to the circuit below containing a capacitor, a bulb and a switch. The capacitor is initially charged, and the switch is initially open as shown in the diagram. Which statement correctly describes what happens to the bulb when the switch is closed?
1.The bulb is dim and remains dim.
2.At first the bulb is dim and it gets brighter and brighter until its brightness levels off.
3.The bulb is bright and remains bright.
4.At first the bulb is bright and it gets dimmer and dimmer until it goes off.
5.None of these is correct.
Which statement correctly describes what happens after the switch has remained closed for a long time?
1.The bulb continues to shine brightly.
2.The bulb no longer shines.
3.The potential difference across the capacitor is steady.
4.The current in the circuit is steady and large.
5.None of these is correct.
DQuestion 19 1 pts Questions 19-20 refer to the circuit below containing a capacitor, a bulb and a switch. The capacitor is initially charged, and the switch is initially open as shown in the diagram. Which statement correctly describes what happens to the bulb when the switch is closed? The bulb is dim and remains dim. At first the bulb is dim and it gets brighter and brighter until its brightness levels off The bulb is bright and remains bright. At first the bulb is bright and it gets dimmer and dimmer until it goes off None of these is correct. D Question 20 1 pts Which statement correctly describes what happens after the switch has remained closed for a long time? The bulb continues to shine brightly. The bulb no longer shines. The potential difference across the capacitor is steady. The current in the circuit is steady and large. None of these is correct.Explanation / Answer
19. Since Discharging of capacitor starts, as soon as switch is closed, Initially current is maximum, which decreases until zero at full discharging of capacitor.
Therefore Answer : At first Bulb is bright, and it gets dimmer and dimmer until it goes off
20. The Bulb no longer shines
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