# hw5.6 - HW5.6 Given Find R0 unknown I1 R1 8 I2 R2 2 I3 R3 4...

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HW5.6 Given: Find: . 0 unknown R ? 1 I 8 1 R ? 2 I 2 2 R ? 3 I 0 4 3 R ? R v 20 V ? b c V V 11 I A ? 1 H ? E P Four resistors are connected as shown. The battery has zero internal resistance. The current I in the circuit is measured to be 11 A. (a) Calculate the currents through each of the resistors R 1 , R 2 , and R 3 with the positive direction taken as left to right in the diagram. (b) Find the unknown resistance. (c) Calculate the potential difference V c - V b between point c and point b . (d) Find the rate of heat production in R 1 . (e) Find the power delivered by the battery. Solutions a.) To find I , & we can use the following formula: 1 2 I 3 I We need three equations: 0 1 1 I R V 0 2 2 3 3 I R I R V 2 1 I I I

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I R 1 1 1 1 R V I 1 1 2 R V I I I I 1 2 R V I I 2 2 3 3 I R V I R 3 1 2 3 2 2 3 R R V I R V R I R V I 3
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hw5.6 - HW5.6 Given Find R0 unknown I1 R1 8 I2 R2 2 I3 R3 4...

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