IIT JEE , AIEEE Forum - Physics , Electricity - the infinite grid again..i dont want the solution as whole..i want to be taught something

bvsatyaram

The equation i1+i2+i3 = -i can be proved usind advanced maths, which u haven't yet seen. So, for the time being, the equation i1+i2+i3 = -i cannot be proved.

But y do u want to prove it?
You get the total current leaving A is 5i+i1+i2+i3. But u don't know a way by which u can find i1+i2+i3. So, go for an alternate method. look from out the circuit. What ever current enters A has to leave A. (as no charge can be stored a a point). So, we conclude that current leaving A is 4i. So, we are getting an answer passing trough a tunnel hiding from 3 monsters i1,i2 and i3.

If u go directly towards the monsters, u have to either give up and loose, or fight against them to win. To fight against them, u need weapons (advanced maths), which are not yet trained to use. So, try escaping it...... Its not a joke... I dont write this to entertain u.... This will be the case with any tough problem u encounter. Follow the same rule.

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