![]() As a result, the current doesn’t pass through any junctions or branches therefore, it doesn’t divide or lose any amperes between the resistors.įor example, when some resistors are connected in series regardless of their resistance, the current passing through the first resistor will be the same until the last resistor that is connected in series, which means that if the current is 4 amperes will stay at 4 amperes in each resistor in the circuit. Why Is the Current in Series Resistors the Same?īecause the current entering the first resistor is the same one entering the next resistor, each resistor is connected to the previous resistor before it. The voltage across each resistor always stays the same regardless of their resistance. Therefore, the only case where the parallel resistors can have the same current is when the two resistors have the same resistance.įor example, when two resistors are connected in parallel with the same resistance 2 Ω, the current entering them will be divided by two, so if the current is 4 amperes, each resistor will have 2 amperes passing through it. ![]() Why Is the Current in Parallel Resistors Not the Same?īecause the current, when it enters a parallel connection, divides into two smaller currents, the value of each current depends on the value of the resistor it’s passing through. As a result, the two resistors are connected to two different points therefore, they have different voltages. Meanwhile, the second side is connected to the next resistor, the second resistor is connected from one side to the first resistor, and its second side is connected to the other pole for the voltage source. When a resistor is connected in series with another resistor, the first resistor is connected from one side directly to the voltage source first pole, such as batteries. Why Is the Voltage in Series Resistors Not the Same?īecause the series resistors are not connected to the same wire nodes, the wires connecting the resistors start and end at different points. The voltage or the potential difference is the difference in voltage between two points in an electric circuit if the points are the same for any number of resistors between them, then the voltage will be the same because the difference is the same. ![]() ![]() If two resistors seem to be connected in parallel and even have the same voltage, but they start and end at different points, they are not parallel. So, why is voltage in parallel resistors the same? Why Is the Voltage in Parallel Resistors the Same?īecause any parallel resistors are connected to the same wire nodes, the wires connecting them start at the same point and then end at the same point. One of these advantages is the same voltage across any resistor in the circuit. Parallel circuits are used in many devices that we use every day because they have many advantages over series ones. ![]()
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