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Kirchhoff's Current Law (KCL)

Kirchhoff's Current Law (KCL). Node. Then, the sum of all the currents is zero. This can be generalized as follows. Loop 1. Loop 2. Kirchhoff's Voltage Law (KVL).

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Kirchhoff's Current Law (KCL)

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  1. Kirchhoff's Current Law (KCL) Node Then, the sum of all the currents is zero. This can be generalized as follows

  2. Loop 1 Loop 2 Kirchhoff's Voltage Law (KVL) Kirchhoff's Voltage Law (or Kirchhoff's Loop Rule) is a result of the conservation of energy. It states that the total voltage drops around a closed loop must be zero. If this were not the case, then when we travel around a closed loop, the voltages would be indefinite. So Kirchhoff's Voltage Law (or Kirchhoff's Loop Rule) is a result of the conservation of energy. It states that the total voltage drops around a closed loop must be zero. If this were not the case, then when we travel around a closed loop, the voltages would be indefinite. So In the figure the sum of the voltage drops around loop 1 should be zero, as in loop 2. Furthermore, the voltage drops around the outer part of the circuit (including both loops) should also be zero. Once we have chosen a direction (clockwise or counterclockwise) to go around a loop, we will adopt the convention that the potential drop going from point i to point j is given by If Vi< Vjthe potential drop Vij is negative (potential gain), which means that the energy increases in that part of the circuit when positive charges go from point i to point j If Vi> Vjthe potential drop Vij is positive, which means that the energy diminishes in that part of the circuit when positive charges go from point i to point j (the energy is dissipated in a resistence, or the energy of the charges drops across a source of voltage).

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