3.333 ohms
How do we calculate the answer?
It is calculated from the "Resistors In Parallel Connection Law" which is:
1 / RTOTAL = 1 / R1 + 1 / R2
In this case:
R1 = 5 and R2 = 10
So:
1 / RTOTAL = 1/5 + 1/10 = 0.2 + 0.1 = 0.3
So:
RTOTAL = 1 / 0.3 = 3.333
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For any number of resistors in parallel . . .
Total effective resistance = 1/(1/A + 1/B + 1/C + 1/D + . . . . .)
(If you're working with resistor combinations, then you're supposed to know this formula.)
If there are only two resistors in parallel, and you use the same formula and simplify it,
the total effective resistance turns out to be (A)x(B)/(A + B) .
(Just say to yourself "the product over the sum" and you'll remember it.)
When the two resistors are 5 ohms and 10 ohms, the total effective resistance is:
(5)x(10)/(5+10) = 50/15 = 31/3ohms
Three 8.0-W resistors are connected in parallel. What is their equivalent resistance?
Two resistors in parallel are equivalent to a single component with a lower resistance than either of the pair. Two resistors in series are equivalent to a single component with a resistance equal to the sum of the pair, therefore a higher resistance. For a given potential difference, more current in total will flow through two resistors in parallel than through the same resistors in series.
No change in supply voltage as additional resistance is connected in parallel circuit.
Join two resistors in parallel (effective resistance = 1 ohm). Join the third in series with the parallel combination (2 + 1 = 3 ohm).
I have two resistors, a 2-ohm and a 3-ohm.What is their combined effective resistance when they are connected in series ?Answer: R1 + R2 = 5 ohmsWhat is it when they are connected in parallel ?Answer: 1 / [ (1/R1) + (1/R2) ] = 1.2 ohms
Two resistors connected in parallel are 1/2 the sum of their resistance. The resistance of two resistors connected in series is the sum of their resistance. For example: The total resistance of a 100 ohm resistor connected to a 200 ohm resistor in parallel is 100+200 divided by 2 = 150 ohms. The total resistance of a 100 ohm resistor connected to a 200 ohm resistor in series 100+200= 300 ohms.
The resistors should be connected in parallel .
Three 8.0-W resistors are connected in parallel. What is their equivalent resistance?
A resistance 'network' consists of a number of resistors connected together in series, or in parallel, or in series-parallel, or as a complex circuit. A 'complex' circuit is one that is not series, parallel, or series-parallel.
If two 1-ohm resistors are connected in parallel, their resistance is 0.5 ohms. If they are connected in series, their resistance is 2 ohms. It is not possible to connect only two resistors in series parallel.
If you need a resistor of a certain value, and you have no resistors with small enough values,you can create the one you need by connecting several of those you have in parallel.The effective net resistance of resistors in parallel is always less than the smallest individual.And the more resistors you add in parallel, the smaller the net effective resistance becomes.
2 ohms. It is like connecting two 3 ohm resistors in series and then these two series resistors are connected in parallel with third 3 ohm resistor in parallel
The required resistance is 12/1.5 = 8Ω.Five 40Ω resistors in parallel have an effective resistance of 8Ω.
You can connect 4 resistors in series-parallel, i.e. two in series, both in parallel with another two, and the effective resistance would be the same as one resistor. Similarly, you can connect nine resistors in 3x3 series-parallel, or 16 resistors in 4x4 series-parallel, etc. to get the same resistance of one resistor.
when we want maximum resistance they are connected in series. when resistors are connected in series total resistance is maximum when resistors are connected in parallel total resistance is minimum for series total R=R1+R2+R3......... for parallel R1 in parallel to R2 total 1/R=(1/R1)+(1/R2) ie R=(R1*R2)/(R1+R2)
4 resistors were connected in parallel it yields 5A of current from 220V supply.
When resistors of the same value are wired in parallel, the total equivalent resistance (ie the value of one resistor that acts identically to the group of parallel resistors) is equal to the value of the resistors divided by the number of resistors. For example, two 10 ohm resistors in parallel give an equivalent resistance of 10/2=5Ohms. Three 60 ohm resistors in parallel give a total equivalent resistance of 60/3 = 20Ohms. In your case, four 200 Ohm resistors in parallel give 200/4 = 50 Ohms total.