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Ohm’s Law

Definition of Ohm’s Law
Physical states (temperature, material, etc.) of a conductor remaining constant, the current flowing through a conductor is directly proportional to the potential difference across the two ends of the conductor.
This general statement of Ohm’s law can be extended to cover inductances and capacitors as well under alternating current conditions and transient conditions.

Kirchhoff’s Current Law (KCL)

Kirchhoff’s current law is based on the principle of conservation of charge. This requires that the algebraic sum of the charges within a system cannot change. Thus, the total rate of change of charge must add up to zero. Rate of change of charge is current.
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Illustration of KCL

Kirchhoff’s Voltage Law (KVL)

Kirchhoff’s voltage law is based on the principle of conservation of energy. This requires that the total work done in taking a unit positive charge around a closed path and ending up at the original point is zero.
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Illustration of KVL

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