HW 7 - 1/2 pointsNotesQuestion Walker4 21.P.058 Find the...

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1. –/2 points Notes Question: Walker4 21.P.058. Find the magnitude and direction of the current in  the figure below, where  R  =  9.50   Ω  and   =  12.5  V. Magnitude   A Direction   2. –/4 points Notes Question: Walker4 21.P.059. Suppose the polarity of the battery   in the figure below is reversed, where  R  =  7.50   Ω  and   =  10.5  V. (a) Do you expect this to increase or decrease the  amount of current flowing in the circuit?  decrease increase     (b) Calculate the magnitude and direction (clockwise  or counterclockwise) of the current in this case. magnitude     A direction   3. –/2 points Notes Question: Walker4 21.P.062. Suppose point  A  is grounded ( V  = 0) in the figure, in  which   =  13  V and  R  =  11   Ω . Find the potential at  points  B  and  C . V B =   V V C =   V 4. –/7 points Notes Question: Walker4 21.P.063. Consider the group of resistors shown in the figure below, where  R 1  =  3.3   Ω  and   =  9.4  V.
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(a) Find the current in each resistor in the figure. I 3.3 =   A I 9.8 =   A I 1.2 =   A I 6.7 =   A (b) Is the potential at point  A  greater than, less than,  or equal to the potential at point  B ?  lesser greater     equal (c) Determine the potential difference between the  points  A  and  B . V 5. –/1 points Notes Question: Walker4 21.P.068. Find the equivalent capacitance between  points  A  and  B  for the group of capacitors shown in  the figure below, where  C 1  =  13  µF and  C 2  =  7.5  µF.   µF 6. –/3 points Notes Question: Walker4 21.P.072. Consider the group of capacitors shown in the figure  below, where  C 1  =  17  µF and  C 2  =  8.8  µF.  Terminals  A  and  B  are connected to a 9.0-V battery.  Find the energy stored in each capacitor. E 17 µF =   J E 8.8 µF =   J E 22 µF =   J 7. –/5 points Notes Question: Walker4 21.P.074. Two capacitors, one 
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This note was uploaded on 03/08/2012 for the course PHYS 115 taught by Professor Pedigo during the Spring '08 term at University of Washington.

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HW 7 - 1/2 pointsNotesQuestion Walker4 21.P.058 Find the...

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