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Welcome to PhysicsForums.Doomkey said:Homework Statement:: Determine the loop currents i1 to i4 in the electrical network shown
Relevant Equations:: I in = I out V = IR
I'm stuck straight out of the gate any help is really appreciated
Nope. The 120 V potentials are only at the top nodes of the diagram. After that there are resistors in the way, so potential drops due to current flows.Doomkey said:I thought the PD for the whole circuit would be 240V and as they're all in parallel shouldn't they all have the same PD?
Kirchoff's voltage law, also known as Kirchoff's second law, states that the algebraic sum of all the voltage drops in a closed loop must equal the algebraic sum of all the voltage rises in that loop. This law is based on the principle of conservation of energy and is used to analyze circuits with multiple loops.
In a circuit with three loops, Kirchoff's voltage law is applied by considering each loop individually. The voltage drops and rises within each loop are calculated and then added together according to the law. This allows for the determination of the current and voltage in each branch of the circuit.
Kirchoff's voltage law is important in circuit analysis because it allows for the determination of unknown currents and voltages in a circuit with multiple loops. It also ensures that the law of conservation of energy is upheld in the circuit.
Yes, Kirchoff's voltage law can be applied to circuits with any number of loops. The law remains the same, and the same principles are used to analyze the circuit. However, as the number of loops increases, the calculations become more complex.
Kirchoff's voltage law is commonly used in various areas of electrical engineering, such as circuit design, power systems, and electronic devices. It is also used in the analysis of complex circuits, such as those found in computers, telecommunication systems, and automotive electronics.