- #1
rtareen
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- TL;DR Summary
- I want to know why the voltage at point b is zero even through it comes before the grounding point in the circuit.
Click the attached file to see the figure and the book's explanation. The explanation for 27-7 (a) makes sense as the point a comes after the grounding point and before anything else. Therefore it should have a potential of zero. But, to me, 27-7 (b) doesn't make any sense. Why should the potential ##V_b## be zero when it comes before the grounding point? Shouldnt any point after the grounding symbol, but before the resistor, have a potential of zero? Why is the voltage at b zero?