The circuit at right contains a battery, a bulb, a switch, and a capacitor. The

Question

The circuit at right contains a battery, a bulb, a switch, and a capacitor. The capacitor is initially uncharged. Bulb A Describe the behavior of the bulb in the two situations below 1. Battery Capacitor The switch is first moved to position I. Describe the behavior of the bulb from just after the switch is closed until a long time later. Explain. a. b. The switch is now moved to position 2. Describe the behavior of the bulb from just afier the switch is closed until a long time later. Explain your reasoning. A second identical bulb is now added to the circuit as shown. The capacitor is discharged. c. Bulb B Bulb C Capacitor i. The switch is now moved to position 1 Battery Describe the behavior of bulbs B and C from just afier the switch is closed until a long time later. Explain. How does the initial brightness of bulb C compare to the initial brightness of bulb A in question 1? Ex plain your reasoning.

Explanation / Answer

Part 1a)

Bulb glows initialy but after a long time bulb doesnot glow.

Part 1b)

Bulb glows again initially and after a long time bulb stops glowing slowly.

Part 1c)

i) same as part a.

when two bulbs are connected the intensity of bulb decreases.

The potential of capasitor is equal to the the potential of battery.

ii) same as part b,

when two bulbs are connected the intensity of bulb decreases, potential of capacitor = 0 after long time.

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