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>>217987
what is that supposed to be?

>>217987
are those resistors on the top supposed to be potentiometers or did you just draw it wrong?

find it hard to believe that they would put those in for a homework of someone that calls current "A"

>>217992
It's 100% a resistor

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>>217992
Here

What don't you understand?
Q1 is just getting resistors in series and parallel
Q2 is just using nodal analysis or mesh analysis. Using Kirchhoff'scurrent and voltage laws. I think you might need ohm's law too.

>>218006
It's r2,r3,r4 that I can't get my head around

>>218013
the sum of current at any node sums to zero

>>218015
Forgive me but I am very new at this, so I have no Idea what that means

>>218019
current in = current out.
current from battery = current through r1 + current through (r2 +r3) + current through r4

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been a while so you might want to check for yourself again but this should be the way.

black arrows first and then figure it out from there :)

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>>217987
it's really easy...