The equivalent resistance is defined as
a common point or node where the total resistance is measured in a series or parallel arrangement
(in either the whole circuit or in a fraction of the circuit). The equivalent resistance or multiple resistors is defined between two terminals or nodes of the electrical network.
How do you find the equivalent resistance?
The equivalent resistance of a 4-Ω and 12-Ω resistor placed in parallel can be determined using the usual formula for equivalent resistance of parallel branches:
1 / R
eq
= 1 / R
1
+ 1 / R
2
+ 1 / R
3
… Now the Ohm’s law equation (ΔV = I • R) can be used to determine the total current in the circuit.
What is mean by equivalent resistance of A circuit?
What is the Equivalent Resistance? The equivalent resistance is
where the total resistance connected either in parallel or in series
. Electrical resistance shows that how much energy will be required when we move the charges i.e. current through the circuit.
What is the difference between total resistance and equivalent resistance?
Lesson Summary
More resistance means less current is flowing through the circuit. Equivalent resistance is a different way of indicating ‘total’ resistance, which we calculate differently for series and parallel circuits. In a series circuit, the different components are connected in a single, continuous loop.
What is the Hindi meaning of equivalent resistance?
equivalent resistance. EQUIVALENT RESISTANCE=
तुल्य प्रतिरोध
[pr.
What is the resistance formula?
Resistance
has units of ohms (Ω), related to volts and amperes by 1 Ω = 1 V/A. There is a voltage or IR drop across a resistor, caused by the current flowing through it, given by V = IR.
How do I calculate resistance?
If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm’s Law:
R = V / I
. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance R
T
= 9 volts / 3 amps = 3 Ω.
Why is equivalent resistance less in parallel?
Resistors in parallel
In a parallel circuit, the
net resistance decreases as more components are added
, because there are more paths for the current to pass through. The two resistors have the same potential difference across them. The current through them will be different if they have different resistances.
What is equivalent resistance between A and D?
Now all the resistance between the points A to D becomes in series, Hence, we can add all of them and get the final equivalent resistance. Hence, we can conclude that option (C)
R=30Ω
is the correct answer.
What is equivalent resistance used for?
The equivalent resistance is where
the aggregate resistance connected either in parallel or series is calculated
. Essentially, the circuit is designed either in Series or Parallel. Electrical resistance shows how much energy one needs when you move the charges/current through your devices.
What is the other name of effective resistance?
Effective resistance is another name given to
the impedance
. Impedance is a property, which changes with the frequency of the signal. Equivalent resistance is defined to a set of resistors or components having resistance only. The effective resistance can be defined to each component of a circuit.
What is the formula for parallel resistance?
The sum of the currents through each path is equal to the total current that flows from the source. You can find total resistance in a Parallel circuit with the following formula:
1/Rt = 1/R1 + 1/R2 + 1/R3 +.
.. If one of the parallel paths is broken, current will continue to flow in all the other paths.
What is the effective resistance?
In a complex circuit consisting of two or more resistors, the effective resistance is
the measure of the total resistance of all the resistor in the circuit
. The resistors can either be connected in parallel combination or series combination.
How do you add resistance in parallel?
Ohm’s Law is is V = IR, where V is the voltage, I the current and R the resistance. Use Ohm’s Law to add parallel resistors. The equation is
1/R(Total) = 1/R1 + 1/R2 + 1/R3 + … + 1/R(Last)
.
What is equivalent resistance between A and B?
Thus, the equivalent resistance of the given combination of the resistors between A and B is equal to
5R8
. Hence, the correct answer is option B.
