![]() ![]() The current in the series connection will have constant value through every element. ![]() Next we will calculate the current flowing in the circuit. ![]() Then the voltage drop across the R 2 and R 3 are 4 V. Thus, we also prove the Kirchhoff’s Voltage Law where the algebraic sum of voltage drop in a closed circuit is zero. The voltage drop across the R 2 and R 3 are equivalent to the voltage drop across the equivalent parallel resistor (R P) of R 2 and R 3. The voltage drop across the R 1 (V R1) is Voltage drop in the parallel connection has the same values across each resistor.Voltage drop in the series connection has different values across each resistor.Now we proceed to calculate voltage drop for each resistor. Thus the total current flowing in the circuit is We will use the second method, one equation consisting of series parallel resistors. Series Parallel Equivalent Resistanceįirst thing first, we have to find the equivalent resistance of the circuit. Here we have one resistor in series with a voltage source and a pair of parallel resistors. This will be different from the simple example above because we will analyze the circuit for its equivalent resistance, voltage drop, flowing current, and more. Now we will proceed to analyze a series parallel circuit. This way we will solve the circuit in one go.įinally, we can write the series parallel circuit formula from the circuit above. We write them in order from positive polarity to negative polarity. Second method, we make a single equation consisting of all the resistors at once. If the steps above are still too long, we can use another approach. After that, we will solve the equivalent resistor (R eq) for R S and R P connected in series.įind the equivalent series resistor, R S:įind the equivalent parallel resistor, R P: We can use two different approaches in order to find the total resistance in that circuit.įirst method, we will solve the series resistors to get an equivalent series resistor (R S) and the parallel resistors to get an equivalent parallel resistor (R P) separately. We will use this circuit to solve one of the series and parallel circuits combined examples. The resistors R 1 and R 4 are in series connection, while the resistor R 2 and R 3 are in parallel connection.īefore calculating the total current flowing in the circuit, we should find the equivalent resistance from those four resistors. In the circuit above we can see that we have a voltage source with 4 resistors R 1, R 2, R 3, and R 4 in series parallel combination. Let’s observe a simple series parallel circuit below. Last step is to solve those equivalent resistances into an equivalent total resistance.įrom the next point until the very end, we will learn everything about how does a series parallel circuit work. Then solve all the parallel resistors into equivalent parallel resistances. Or we could make it faster if we solve all the series resistors into equivalent series resistances. We should solve the circuit for each group of parallel resistors to make an entirely series circuit then solve it. We only need to take a different approach to solve this kind of circuit. We may find a pure series circuit or parallel circuit, but mostly in our life, they will be the combination of series and parallel or we call them series parallel circuits.ĭon’t worry, it is not an entirely different thing from series circuit or parallel circuit. In the actual applications, we will mostly find series parallel circuit instead of series circuit or parallel circuit. 4 Series Parallel Circuit Examples in Real LifeĪfter learning about series and parallel circuit, we will learn about the series parallel circuit examples, a circuit with combination of series and parallel circuit.
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