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3ºeso file 25_elect_3_solutions

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solutions to several electric parallel circuits problems

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3ºeso file 25_elect_3_solutions

  1. 1. Electricity problems (III) Parallel circuits Solutions Para llel Circ uit Volt age R1 (Ω) R2 (Ω) R3 (Ω) Requiv alente( Ω) I 1 I2 I 3 I total 1 20 175 80 100 35,4 0,114 0,250 0,200 0,564 2 30 490 350 1200 174,5 0,061 0,086 0,025 0,172 3 40 250 850 1100 164,3 0,160 0,047 0,036 0,243 4 100 190 190 190 63,3 0,526 0,526 0,526 1,579 5 120 2300 10000 2800 1121,2 0,052 0,012 0,043 0,107 6 30 4700 4700 3400 1389,6 0,006 0,006 0,009 0,022 7 90 12300 15400 9600 3993,6 0,007 0,006 0,009 0,023 8 120 3400 5500 600 466,7 0,035 0,022 0,200 0,257 9 9 24 8 14 4,2 0,375 1,125 0,643 2,143 10 30 40 25 12 6,7 0,750 1,200 2,500 4,450 11 25 120 460 700 83,8 0,208 0,054 0,036 0,298 12 20 560 420 880 188,6 0,036 0,048 0,023 0,106 13 15 640 3900 1000 354,7 0,023 0,004 0,015 0,042 Para llel Circ uit Volt age R1 (Ω) R2 (Ω) R3 (Ω) R4 (Ω) Requiv alente( Ω) I 1 I2 I 3 I 4 14 24 5 8 6 7 1,6 4,800 3,000 4,000 3,429 15 12 9 22 14 18 3,5 1,333 0,545 0,857 0,667 16 9 13 17 21 19 4,2 0,692 0,529 0,429 0,474

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