kirchhoff's voltage law

Question

Sum of potential differences around closed loop is:

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Kirchhoff's Voltage Law (KVL), based on the **Conservation of Energy**, states that the algebraic sum of all potential differences (EMFs and IR drops) around any closed loop in a circuit must be zero.
$\sum \Delta V = 0$
- This means the energy gained per unit charge from sources equals the energy dissipated across resistors.

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