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PhysicsCurrent ElectricityCircuit AnalysisEasy2 minPYQ_2019
PhysicsEasysingle choice

In the given circuit diagram, the currents,I1=-0.3A,I4=0.8AandI5=0.4A,are flowing as shown. The currentsI2,I3andI6,respectively, are:

Question diagram: In the given circuit diagram, the currents, I 1 = - 0.3 A ,

Options:

Answer:
C
Solution:

Given I1=-0.3A,I4=0.8A,I5=0.4A,in series connection current will be same, hence I5=I6=0.4A,According to kirchoff's juncion rule, algebraic sum of the currents meeting at tthe juction is zero.i.e currents flowing into the junction is taken as positive and current flowing out of the junction is taken as negative.At the junction R, -I4+I2+I1=0-0.8+I2-0.3=0I2=1.1AAt junction Q, I6+I3-I2-I1=00.4+I3-1.1+0.3=0I3=1.1-0.7=0.4AIt is problem of kirchhof's current law.

I6=0.4 A

I3=0.8 A-O.4A=0.4 A

I2=0.8+0.3A=1.1 A

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Circuit Analysis
2mℹ️ Source: PYQ_2019

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