According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.fs. in any closed loop of a network is always____________?
Correct answer: D. zero
- A. negative
- B. positive
- C. determined by battery e.m.fs.
- D. zero
Explanation
KVL states that the algebraic sum of all voltage rises and drops around any closed loop is zero. The signs depend on the chosen traversal direction, but the final sum must cancel.
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