Answer to Question #269883 in Electric Circuits for Klongklong

Question #269883







Answer the Following Problem




Direction: Find all the currents and voltages across each resistor and cell in the following circuits;




1.



































2.









































3.









































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6.






1
Expert's answer
2021-11-23T10:32:56-0500


for left loop:

4I3+3I4=124I_3+3I_4=12

for right loop:

2I24I3=52I_2-4I_3=-5


I1=I2+I3I_1=I_2+I_3

I4=I2+I3I_4=I_2+I_3


then:

4I3+3(I2+I3)=124I_3+3(I_2+I_3)=12

I2=47I3/3I_2=4-7I_3/3


2(47I3/3)4I3=52(4-7I_3/3)-4I_3=-5

I3=133/26=39/26=1.5I_3=13\cdot3/26=39/26=1.5 A

I2=471.5/3=0.5I_2=4-7\cdot 1.5/3=0.5 A

I1=I4=0.5+1.5=2I_1=I_4=0.5+1.5=2 A


U2=20.5=1U_2=2\cdot0.5=1 V

U3=41.5=6U_3=4\cdot1.5=6 V

U4=32=6U_4=3\cdot2=6 V


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