Superposition rule is used to solve a DC resistive circuit which has two independent voltage sources and four resistors.
In AC circuit analysis, if the circuit has sources operating at different frequencies, Superposition theorem can be used to solve the circuit. Please note that AC circuits are linear and that is why Superposition theorem is valid to solve them. Problem Determine where and . Solution with AC Circuit Analysis Since sources are operating at […]
A circuit with four meshes solved using the mesh analysis.
Problem Find and : Solution Three resistors are in series and their equivalent, , is parallel with the voltage source. So, according to the Ohm's law: . The negative sign comes from the direction . Applying KCL at the bottom node: . The lucky winner of the Electrical Circuits Contest #1 is Kunal Marwaha from […]
Determine the driving-point impedance of the network at a frequency of kHz: Solution Lets first find impedance of elements one by one: Resistor The resistor impedance is purely real and independent of frequency.
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Find using superposition rule: Solution Superposition The superposition theorem states that the response (voltage or current) in any branch of a linear circuit which has more than one independent source equals the algebraic sum of the responses caused by each independent source acting alone, while all other independent sources are turned off (made zero).
Find Thevenin's and Norton's Equivalent Circuits:Suppose that , and . Solution The circuit has both independent and dependent sources. In these cases, we need to find open circuit voltage and short circuit current to determine Norton's (and also Thevenin's) equivalent circuits.
A DC resistive circuit with two sources, one voltage source, one current source both independent solved using current division method.
Solve the circuit and find the power of sources: , , , , , . Solution: There are three meshes in the circuit. So, we need to assign three mesh currents. It is better to have all the mesh currents loop in the same direction (usually clockwise) to prevent errors when writing out the equations.