How To Find Voltage Drop Across Each Resistor In A Parallel Circuit

By | February 5, 2023



When it comes to understanding electrical circuits, one of the most important concepts is calculating voltage drop across each resistor in a parallel circuit. This knowledge can help you determine the total current flowing through each resistor and the individual sources of power for any given circuit. Knowing the voltage drop across each resistor in a parallel circuit can also provide insight into how much energy is dissipated from each resistor. But finding the voltage drop across each resistor can be tricky, even for experienced engineers.

In order to calculate the voltage drop across each resistor in a parallel circuit, the first step is to draw a schematic showing each resistor and its respective resistance value. Then each resistor in the circuit needs to be connected to the same point. The next step is to calculate the total equivalent resistance of the circuit. The formula for this is: equivalent resistance = 1 / (1/resistor1 + 1/resistor2 + …).

Once the equivalent resistance of the circuit is known, the total current can be calculated. The formula for this is: total current = voltage / equivalent resistance. With the total current known, the voltage drop across each resistor in the circuit can then be calculated. The formula for this is: voltage drop = total current x resistor.

It’s important to bear in mind that the total current through each resistor in a parallel circuit will be different from the current through any other resistor in the same circuit. This means that the voltage drop across each resistor in the circuit will also be different. It’s also worth noting that the voltage across each resistor in a parallel circuit will be equal to the voltage of the source.

Being able to calculate the voltage drop across each resistor in a parallel circuit is an essential skill for anyone involved in electronics engineering. Knowing the total equivalent resistance, total current, and voltage drop across each resistor in the circuit can provide invaluable insight into how a circuit works and provide insights into potential issues. Being knowledgeable in this area can save time and money, as well as ensuring safety.


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