10) Consider the circuit shown in the figure. Initially the capacitor is not charged. a)(0.4p) Immediately...

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10) Consider the circuit shown in the figure. Initially the capacitor is not charged. a)(0.4p) Immediately after the switch is closed, what current does the ammeter read? = 24 V 1+ R = = 602 b) A long time after the switch is closed, the capacitor acts like an open switch. C = 40 F acts like a conducting wire. c)(0.4p) What is the potential difference across the capacitor after the switch has been closed for a long time? R = 100 2 www ww d)(0.2p) The switch was closed long enough that the capacitor is fully charged, before the switch is opened again. (Note this disconnects the battery.) No current flows through resistor R (1002). Current flows through resistor R2 (1002) from left to right. Current flows through resistor R2 (1002) from right to left. e) (0.8p) Assume resistor R2 is replaced with a light bulb. Describe what happens over time to the brightness of this light bulb (i) when the capacitor is initially uncharged and the switch is closed and stays closed for a longer time. (ii) when the capacitor is fully charged and the switch is opened. 10) Consider the circuit shown in the figure. Initially the capacitor is not charged. a)(0.4p) Immediately after the switch is closed, what current does the ammeter read? = 24 V 1+ R = = 602 b) A long time after the switch is closed, the capacitor acts like an open switch. C = 40 F acts like a conducting wire. c)(0.4p) What is the potential difference across the capacitor after the switch has been closed for a long time? R = 100 2 www ww d)(0.2p) The switch was closed long enough that the capacitor is fully charged, before the switch is opened again. (Note this disconnects the battery.) No current flows through resistor R (1002). Current flows through resistor R2 (1002) from left to right. Current flows through resistor R2 (1002) from right to left. e) (0.8p) Assume resistor R2 is replaced with a light bulb. Describe what happens over time to the brightness of this light bulb (i) when the capacitor is initially uncharged and the switch is closed and stays closed for a longer time. (ii) when the capacitor is fully charged and the switch is opened.