# How To Solve Circuit Problems Kirchhoff's Current Law (KCL), named after German physicist Gustav Kirchhoff, states that the sum of all current entering any point in a circuit has to equal the sum of all current leaving any point in a circuit.More simply, this is another way of looking at the law of conservation of charge.We know the potential drop across each resistor (4V), the current through each resistor (2 m A), and the power dissipated by each resistor (8 m W).

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Combining your knowledge of Ohm's Law, Kirchoff's Current Law, Kirchoff's Voltage Law, and equivalent resistance, you can use this table to solve for the details of any circuit.

A VIRP table describes the potential drop (V-voltage), current flow (I-current), resistance (R) and power dissipated (P-power) for each element in your circuit, as well as for the circuit as a whole.

Developing an understanding of circuits is the first step in learning about the modern-day electronic devices that dominate what is becoming known as the "Information Age." A basic circuit type, the series circuit, is a circuit in which there is only a single current path.

Kirchhoff's Laws provide us the tools in order to analyze any type of circuit.

To find the equivalent resistance of any number of series resistors, we just add up their individual resistances: Note that because there is only a single current path, the same current must flow through each of the resistors.

A simple and straightforward method for analyzing circuits involves creating a VIRP table for each circuit you encounter.

Let's use our circuit with the three 2000-ohm resistors as an example to demonstrate how a VIRP table is used.

To create the VIRP table, we first list our circuit elements, and total, in the rows of the table, then make columns for V, I, R, and P: Next, we fill in the information in the table that we know.

A Resistor is a small component of a circuit used to change how much resistance is within the circuit. Parallel resistors look like a “ladder” on a circuit, each one is stacked on top of each other so to speak. To find the total resistance of a series configuration, you simply add them together. To find the total resistance of a parallel configuration, we must divide one by each resistor value separately, add them together, then divide one by this total.

For example, if you have three resistors R1, R2, and R3, the total resistance is as such “R=R1 R2 R3”. Such as (1/R1 1/R2 1/R3) = 1/R ==Once you have found the total resistance (R) and given voltage (V) we plug it into the Ohm’s Law equation (I=V/R).

## Comments How To Solve Circuit Problems

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Solve the equation system with equations for the unknown node voltages. In the same circuit considered previously, there are only 2 nodes and and are not nodes. We assume node is the ground, and consider just voltage at node as the only unknown in the problem. Apply KCL to node, we have…

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Chose a method of them. After understanding the circuit you have to decide how you solve the circuit by which method. So you must have knowledge about different method of circuit analysis like nodal analysis, mesh analysis etc. Forth step is try a problem solution. Actually this step begins to solve. Fifth step evaluate the solution. Solve with equations and check accuracy. Sixth step is final.…

• ###### Resistors in Series and Parallel - Resistor Combinations

Resistors in Series and Parallel Example No2. When solving any combinational resistor circuit that is made up of resistors in series and parallel branches, the first step we need to take is to identify the simple series and parallel resistor branches and replace them with equivalent resistors.…

• ###### How to Solve Circuit Problems 9 Steps with Pictures.

How to Solve Circuit Problems - Steps Develop confidence in your problem solving skills. Gain knowledge of mesh analysis 1, nodal analysis 2 and some theorems like Thevenin equivalence. Examine the problem carefully. Write down all the givens, organize the information and think about the.…

• ###### How to Solve Any Series and Parallel Circuit Problem

BREAK IT DOWN We redraw the circuit in linear form to more easily identify series and parallel relationships. Then we combine resistors using equivalent resistance equations.…

• ###### Combination Circuits -

Combination Circuits. When all the devices in a circuit are connected by parallel connections, then the circuit is referred to as a parallel circuit. A third type of circuit involves the dual use of series and parallel connections in a circuit; such circuits are referred to as compound circuits or combination circuits.…

• ###### How to Solve Parallel Circuits 10 Steps with Pictures.

How to Solve Parallel Circuits - Example Circuit Make a chart to keep track of your work. Fill in all the information given by the problem. Copy the voltage value to each branch. Use Ohm's Law to find the current in each branch. Solve for total current. Solve for total resistance.…