Calculate the following for the circuit shown in figure (2): a) The current i, and the voltage v. b) The total power dissipation in all resistors. c) The power dissipation in each independent source. 22 2ix , 10Ω 20 V 20 2 20 V 2023i 52 1A wwww ww ww ww
PRESENCE OF SOURCE:
In the presence of sources, all the passive elements which are R, L and C always absorb energy than the current enters at the positive terminal of R, L, and C.
ABSENCE OF SOURCES:
In the absence of sources, energy storage elements (L and C) will deliver the energy to the energy dissipated element, while delivering energy current enters at the negative terminal of (L and C) elements whereas in resistor (R) current always enters at the positive terminal.
KIRCHHOFF’S LAW:
KCL: The algebraic sum of all currents at a node is zero. Kirchhoff's current law is applicable for active and passive networks, as well as linear & non-linear networks. This law is based on Conservation of Charge.
KVL: The algebraic sum of all voltages in a closed path is zero. Kirchhoff's voltage law is applicable for active and passive networks, as well as linear & non-linear networks. This law is based on the conservation of energy.
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