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Is b 20A 100A I2 Is 30.52 30A 0.52 50A

Is b 20A 100A I2 Is 30.52 30A 0.52 50A

Question

Find I1, I2, I3 ??

Is b 20A 100A I2 Is 30.52 30A 0.52 50A
Transcribed Image Text:Is b 20A 100A I2 Is 30.52 30A 0.52 50A
Expert Solution
Step 1

For the given circuit let's assume i current is flowing through wire DC and I' current is flowing in the wire BC along the direction shown.

Advanced Physics homework question answer, step 1, image 1

Apply Kirchhoff's current law at junction A we get

I1 + I2 + I3=100A             .............(1)

at junction B

I' -I1 = -20A

Or

I' = -20 + I1             .............(2)

at junction C

I' + I2 + i= 50A             .............(3)

At junction D

I3 - i =30A

Or

i=I3 - 30             .............(4)

Apply Kirchhoff's voltage law in loop-ABC we get

1xI1 +0.5x I' -1x I2=0

Or

I1 +0.5I' -I2=0             .............(5)

in loop-ACD

I2 - I3 -0.5 i =0             .............(6)

 

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