Contents
What do you do with a current source in superposition theorem?
You can use superposition when a circuit has a mixture of two independent sources, with one voltage source and one current source. You need to turn off the independent sources one at a time. To do so, replace the current source with an open circuit and the voltage source with a short circuit.
Can superposition be used to find power?
Superposition works for voltage and current but not power. To calculate power we first use superposition to find both current and voltage of each linear element and then calculate the sum of the multiplied voltages and currents.
Can we apply superposition for voltage why?
Superposition theorem applies only for voltages and currents, not powers. Superposition can be used to find the total current when it is in the time domain. Using that current, you can then find voltage across or power absorbed by a resistor.
Is superposition theorem valid for power?
Power calculation cannot be done by superposition principle because power is not linear function of voltage or current. Superposition is not applicable if any redundant source will present in the circuit.
How do you find the current in a circuit?
If the voltage (V) and resistance (R) of any circuit is given we can use the current formula to calculate the current, i.e., I = V/R (amps).
How to calculate the superposition theorem for DC circuits?
Now find the total current supplied by the 50V source and apply current division rule at node ‘A’ to find the load current. So the current supplied by 50V voltage source is 1.32 A. Now perform algebraic sum of the current flows through the load resistor. The current by 48V source flows in to the load.
How to find the current through a 5Ω resistor?
Find the current through 5Ω resistor using superposition theorem. If you look the above circuit, it has a current and a voltage source. To reduce the complexity of the problem convert 5A current source in to its equivalent voltage source. After the source Transformation, the circuit can be redrawn as given below.
How to find the total resistance of a short circuit?
So, the current supplied by the 48V source is 6.86 Amperes. Now consider the 24V source alone and replace 48 V source by a short circuit. Now find the total resistance of the circuit and by find the total current supplied by the source.
How to calculate the load current of a short circuit?
The calculation steps are as follows. Then, the current supplied by 48V voltage source is 3.79 A. Now, consider the 50V voltage source only and replace 48V source by a short circuit. Now find the total current supplied by the 50V source and apply current division rule at node ‘A’ to find the load current.