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Which two resistors can be replaced by a single equivalent?
Resistors in series or complicated resistor networks can be replaced by one single equivalent resistor, REQ or impedance, ZEQ and no matter what the combination or complexity of the resistor network is, all resistors obey the same basic rules as defined by Ohm’s Law and Kirchhoff’s Circuit Laws.
Can you use multiple resistors?
You can place more than two resistors in series if you want. You just keep adding up all the resistances to get the total resistance value. Any time you see two or more resistors in series in a circuit, you can substitute a single resistor whose value is the sum of the individual resistors.
Can parallel resistors be replaced using a single equivalent resistor?
Strategy for simplifying a resistor network Begin as far away as possible from the circuit location in question. Replace series or parallel resistors with their equivalent resistor. Continue, moving left until a single equivalent resistor represents the entire resistor network.
When two or more resistors are connected in a parallel?
When resistors are connected in parallel, more current flows from the source than would flow for any of them individually, so the total resistance is lower. Each resistor in parallel has the same full voltage of the source applied to it, but divide the total current amongst them.
When two or more resistors are connected in parallel across a potential difference?
In parallel the resistors are all connected together at one end, and are also all connected together at the other end. The potential difference across each resistor is the same, and the currents add to equal the total current entering (and leaving) the parallel combination. For two resistors in parallel: I = I1 + I2.
How to change the resistance of a resistor with another?
Instead of ordering and wanting for a resistor with a value you need you can change the resistance of a resistor by using another resistor or many. By installing resistors in a parallel or series circuit you can change the value in Ohms. Here is a link to a resistor calculator.
Can a parallel combination of resistors have the same voltage?
For example, although the parallel combination has the same voltage across it, the resistances could be different therefore the current flowing through each resistor would definitely be different as determined by Ohms Law. Consider the two resistors in parallel above.
How to calculate the number of resistors in a series?
Discussion for (e) 1 Series resistances add: Rs = R1 + R2 + R3 +…. 2 The same current flows through each resistor in series. 3 Individual resistors in series do not get the total source voltage, but divide it.
How to calculate the resistance of a circuit?
(a) Calculate the equivalent resistance of the circuit. (b) Calculate the current through each resistor. (c) Calculate the potential drop across each resistor. (d) Determine the total power dissipated by the resistors and the power supplied by the battery. A simple series circuit with five resistors.