Q2Basic Electrical Engineering
Question
2 marks
State Kirchoff's voltage law.
Answer
Kirchhoff's Voltage Law (KVL) dictates that the total algebraic sum of voltages around any closed loop in an electrical circuit must equal zero.
Kirchhoff's Voltage Law (KVL) is fundamentally based on the principle of conservation of energy. It mathematically states that for any closed loop (or mesh) in a lumped electrical circuit, the directed sum of the potential differences (voltages) is zero.
In simpler terms, the sum of all electromotive forces (EMFs or source voltages) provided in a loop is exactly equal to the sum of all the voltage drops (IR drops) across the passive components (like resistors) within that exact same loop. Therefore, .