How to determine the voltage Ub2 so that the current through R2 would be equal to 0,150A using Kirchoff's Law? Thank you!
I've drawn the arrows already. I hope they're right. But now I don't know which equations to make?
If it's blurry, here's the given data:
Ub1 = 20V
Ub2 = unknown
R1 = 300 Ohm
R2 = 100 Ohm
R3 = 200 Ohm
I've drawn the arrows already. I hope they're right. But now I don't know which equations to make?
If it's blurry, here's the given data:
Ub1 = 20V
Ub2 = unknown
R1 = 300 Ohm
R2 = 100 Ohm
R3 = 200 Ohm
1 Answer
Feb 17, 2018
From the directions you have made,we can say,
Now,volatge drop across the three wires will be the same,as no battery or resistance is intervening in between them.Let this be
Now,given,
So,voltage drop across
So,using Kirchoff's law for the upper wire,we get,
So, current flowing through
So,using Kirchoff's law,for the lower wire,
Or,