Question #107025

Explain the principles of KCL and KVL laws used to solve circuit question.Kindly ponder on how the loop and direction ll help in determining the equations(either a positive or negative current)

Expert's answer

Kirchhoff's current law:

*Currents that flow into a node are positive, currents that flow out of the node are negative, and their sum is zero. *

The principle that stipulates KCL: the law of conservation of charge.

Kirchhoff's voltage law:

*The sum of voltage drops on elements along a loop of given direction equals the sum of voltage s of power supplies. Currents flowing in the direction of the loop cause positive voltage drops, likewise, voltage sources with higher potential in the direction of the loop are also positive. *

KVL is based on a principle of conservation of energy.

If the solution of a circuit gives us negative value of a current, it means that this current (of positive value) flows in opposite direction.

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