(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In the circuit given (attached) , point S is earthed , what are the electrical potentials at point P , Q and R .

2. Relevant equations

Kirchoff's second law .

3. The attempt at a solution

The electric potential at point S is 0 . By applying Kirchoff's second law ,

I(2+3)=15-5

I=2A

i am not sure where to go from here .

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# Homework Help: Square circuit

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