For resistances in parallel, total effective resistance is [ 1 divided by (1/R1 + 1/R2 + 1/R3 + . . . . . etc.) ]
For two resistors, this expression can be massaged to show that the net effective resistance is
(R1 R2) / (R1 + R2).
(12 x 4) / (12 + 4) = 48/16 = 3 ohms.
Their net effective resistance is 3 ohms.
That is, you could rip them both out and replace them with a single
3-ohm resistor, and the power supply wouldn't know any difference.
The total resistance is 3 ohms. Scroll down to related links and look at "Parallel Resistance Calculator".
The total resistance is 3 ohms. Scroll down to related links and look at "Parallel Resistance Calculator".
By me giving you the answer doesn't help you to learn. See related links, this should help you along.
4
1/x
-
12
1/x
=
1/x
gives the answer 3 ohms.
a
No. Load resistance is the value of the element actually doing the work of the circuit it is connected to. A speaker connected to an amplifier is the load.
It does not contain unidirectional outputAnswerA purely resistive circuit is an 'ideal' circuit that contains resistance, but not inductance or capacitance.
even though a resistance is not connected in a circuit, it would practically have small resistance due to its components.so practically a LC circuit dosent exist..only a RLC circuit exists
It does not contain unidirectional outputAnswerA purely resistive circuit is an 'ideal' circuit that contains resistance, but not inductance or capacitance.
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.
50 ohms
If additional resistance is connected in parallel with a circuit the supply voltage will decrease?
No change in supply voltage as additional resistance is connected in parallel circuit.
In principle, it is infinite. I have not connected a parallel circuit in ages.
100.0 (apex)
No. Load resistance is the value of the element actually doing the work of the circuit it is connected to. A speaker connected to an amplifier is the load.
In a series circuit, just add all the individual resistances, to get the total resistance.
In the circuit it is connected to other devices with their own properties that can influence your reading. Out of circuit you just measure the resistor. It has the same value both ways.
You open one of the leads of resistor connected in electronic circuit while measuring its resistance in order to not introduce error cause by other components in the circuit.
an ideal ammeter has zero or negligible resistance when this is connected in series no effective resistance would be added in the circuit so that the value of curret that we get is exactly of the circuit only. but when the ammeter is connected in parllel as it has zero resistance , the resistor to which it is connected in parllel gets shorted and due to his the effective resistance of the circuit is changed and so the effective current ... due to this the w=value measured by the ammeter would be different (incresed due to dec. in effective resistance)
It does not contain unidirectional outputAnswerA purely resistive circuit is an 'ideal' circuit that contains resistance, but not inductance or capacitance.
If it is connected in series with a circuit then it might raise the resistance too high and fail the system. Parallel connection is a circuit is probably the best bet you have.