Engineering How Do You Calculate Norton Equivalent Circuits in Electrical Engineering?

AI Thread Summary
To calculate the Norton equivalent circuit, first determine the Norton resistance (Rn) by turning off independent sources and analyzing the resistors in series, resulting in Rn = 34 ohms. The next step involves using mesh analysis to find the Norton current (I(n)), but confusion arises regarding the impact of a 2 amp current source on the mesh currents. It's clarified that the 2 amp source affects the mesh currents, specifically creating a relationship between them. An alternative method suggested is superposition, where one current source is canceled while calculating the current, then the process is repeated for the other source. Proper labeling of mesh currents is essential for accurate calculations.
ihavaquestion
Messages
5
Reaction score
0

Homework Statement


Find norton equivalent circuit


Homework Equations


Rn=Rth


The Attempt at a Solution


Ok i got my R(n)=34 ohms because after you turn off independent sources the resistors are in series, then I short circuited a to be and I'm trying to use mesh analysis to solve for I(n)
the problem arises with the 2 amp current source does that make I2 and I3 2 amps? help!?
 

Attachments

  • 3.jpg
    3.jpg
    16.5 KB · Views: 398
Last edited:
Physics news on Phys.org
ihavaquestion said:

Homework Statement


Find norton equivalent circuit


Homework Equations


Rn=Rth


The Attempt at a Solution


Ok i got my R(n)=34 ohms because after you turn off independent sources the resistors are in series, then I short circuited a to be and I'm trying to use mesh analysis to solve for I(n)
the problem arises with the 2 amp current source does that make I2 and I3 2 amps? help!?

You can write the mesh equations for the circuit and calculate the current in ab.
Or you can use superposition: cancel one of the current sources and calculate the current, then activate that source and cancel the other. The total sum of the two partial currents. current is the
 
ihavaquestion said:
the problem arises with the 2 amp current source does that make I2 and I3 2 amps? help!?

You didn't label the diagram with mesh currents, so I'll guess that you have three meshes numbered from left to right in the circuit. For clockwise mesh currents i1, i2, i3, the 2A independent source will make i3 - i2 = 2A.

Note that you could also solve the problem pretty easily using superposition: you get a couple of straightforward current dividers to deal with.
 
thank you for your help
 

Similar threads

Engineering Norton/Thevenin Equivalent circuits with a dependent voltage source
Replies
9
Views
5K
Engineering Calculating Norton Equivalent Circuit for Complex Load Impedance
Replies
2
Views
2K
Engineering Is This a Norton Circuit with the Current Source on the Left?
Replies
1
Views
1K
Engineering Voltage and current calculation of circuit
Replies
5
Views
2K
Thevenin Equivalent : Wrong value for Rth
Replies
7
Views
3K
Engineering How to Calculate Thevenin Equivalent Circuit
Replies
5
Views
2K
Engineering How do I find Vth with the node voltage method?
Replies
10
Views
3K
How Do You Calculate Norton's Current in a Complex Circuit?
Replies
6
Views
1K
Engineering How Do You Approach Nortons and Thevenins Equivalent Circuits?
Replies
5
Views
2K
Engineering Converting to a circuit's Thevenin equivalent?
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top