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The given four terminal net work is a part of larger circuit. The points A, B, C are at the same potential. The P.E. between any one of A, B or C and D is 40 V. Find the P.D. between A & O. |
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Answer» Solution :Potentials of POINTS A, B and C are 40 V. POTENTIAL of D is 0V. Potential at O is `V_(0)`, Then ACCORDING Kirchoff.s first LAW `i_(1)+i_(2)+i_(3)=i_(4)`  `(40-V_(0))/(R )+(40-V_(0))/(R )+(40-V_(0))/(R )=(V_(0)-0)/(R )` `120-3V_(0)=V_(0)" so "V_(0)=30V""V_(AO)=10V` |
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