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Act.03.04

# Act.03.04 - as are the capacitors In each circuit the...

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Physics 2102, February 4, 2011. Activity 1 : The figure shows a circuit with two batteries ( E A = 12 V, E B = 9 V) and three resistors ( R 1 = 25 Ω , R 2 = 15 Ω , R 3 = 5 Ω ). (a) Calculate the current i 2 through resistor R 2 . (Hint: identify a loop that will make this easy for you, and use the loop rule in that loop. Remember you know the emfs and the resistances). (b) Use the same technique to calculate the current i 1 through R 1 . (c) Calculate the current i B through battery B . Physics 2102, February 4, 2011. Activity 1 : The figure shows a circuit with two batteries ( E A = 12 V, E B = 9 V) and three resistors ( R 1 = 25 Ω , R 2 = 15 Ω , R 3 = 5 Ω ). (a) Calculate the current i 2 through resistor R 2 . (Hint: identify a loop that will make this easy for you, and use the loop rule in that loop. Remember you know the emfs and the resistances). (b) Use the same technique to calculate the current i 1 through R 1 . (c) Calculate the current i B through battery B .

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Activity 2: The figure shows three circuits, each with two resistors and a capactor. The resistors are all identical,
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Unformatted text preview: as are the capacitors. In each circuit, the capacitor is to be charged by connecting the ends of the circuit to a 12 V battery. We start charging the capacitors at the same time. (a) In which circuit will the charge on the capacitor first reach 50% of its final value? (b) Is the final charge on the capacitor the same or different in the two circuits? Activity 2: The figure shows three circuits, each with two resistors and a capactor. The resistors are all identical, as are the capacitors. In each circuit, the capacitor is to be charged by connecting the ends of the circuit to a 12 V battery. We start charging the capacitors at the same time. (a) In which circuit will the charge on the capacitor first reach 50% of its final value? (b) Is the final charge on the capacitor the same or different in the two circuits?...
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Act.03.04 - as are the capacitors In each circuit the...

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