Resistors in parallel have a LOWER combined resistance than either alone, not a higher one.
Resistance doesn't have a 'purpose'; it exists whether you want it or not. You can modify it by adding more resistance in series or in parallel, but you can't avoid it!
resistance inparallel decrease in value proportionally two resistance can be calculated as R1XR2/SUM OF R1+R2. many values can be calculated as a fraction 1/r+1/r2+1/3 ....and take the total sum reciprocal
The current through each resistor is equal to the voltage across it divided by its resistance for series and parallel circuits.
No, the total resistance increases.
Use the general equation for resistance in parallel: 1/R = 1/R1 + 1/R2
The ratio of the equivalent resistance of series combination to the parallel combination of n equal resistors is (n^2 - 1)/n.
The resulting resistance of the parallel combination will be the resistance of the original wire divided by n squared.
The equivalent resistance of the parallel combination is 2/3 ohm.
You can achieve an effective resistance of 3 ohms by connecting the resistors in series. Connect two resistors in series to get a combination of 4 ohms. Then, connect this combination in parallel with the third resistor to achieve an overall resistance of 3 ohms.
Resistance is connected in parallel with voltmeter or say, voltmeter is connected in parallel with resistance.
Yes, the current split in parallel circuits does affect the overall resistance in the circuit. In a parallel circuit, the total resistance decreases as more branches are added because the current has multiple paths to flow through, reducing the overall resistance.
The resistance of two or more resistors in series is the sum of their resistances. RS = sumI=1,N (RI) The resistance of two or more resistors in parallel is the inverse of the sum of the inverses of the resistances. This is the same as saying that the conductance of two or more resistors in parallel is the sum of their conductances. RP = 1 / sumI=1,N (1/RI)
When more light bulbs are added in parallel to a circuit, the total resistance of the circuit decreases. This is because in a parallel circuit, the reciprocal of the total resistance is equal to the sum of the reciprocals of the individual resistances. More paths for current to flow mean less overall resistance in the circuit.
Resistance doesn't have a 'purpose'; it exists whether you want it or not. You can modify it by adding more resistance in series or in parallel, but you can't avoid it!
by adding resistance in parallel more current is bound to flow
Well, this is a nice question. I will just try to answer it. Note that the combined resistance in parallel will always be less than any of the individual resistances. In the parallel system, there is a separate independent path from the source to each resistance and back to the source, therefore each has the same voltage drop. This means that the voltage must be the same at each point in the parallel circuits. There are three rules governing simple parallel circuits of resistive elements: 1. Voltage across each resistor is the same as the voltage across the parallel combination. 2. The current flowing through the parallel combination is the sum of the current in the separate branches. 3. Summing resistance of a parallel circuit can be stated as follows: The reciprocal of the total resistance is equal to the sum of the reciprocals of each of the individual resistances. So that you can have more information about series and parallel circuits, just try to visit the website....: http://elpaso.apogee.net/foe/fcsppr.asp
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