Online Resource for ETCH 213
Faculty: B. Allen
Introduction to DC Parallel
Circuits
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
ETCH 213: Introduction to DC Parallel Circuits - Faculty B. Allen - Prof. Bret C. Allen, Study notes of Electrical and Electronics Engineering
This online resource provides an introduction to dc parallel circuits for etch 213 students. Topics covered include the concept of parallel circuits, voltage and current distribution, kirchhoff's current law, branch current, conductance, resistance, and power calculations. The document also includes examples and troubleshooting tips.
Typology: Study notes
Pre 2010
1 / 17
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download ETCH 213: Introduction to DC Parallel Circuits - Faculty B. Allen - Prof. Bret C. Allen and more Study notes Electrical and Electronics Engineering in PDF only on Docsity!
Online Resource for ETCH 213
Introduction to DC Parallel
Circuits
Online Resource for ETCH 213 Parallel circuit
( Also called shunt ): a circuit having two ormore paths for current flow.
Online Resource for ETCH 213
Current in a parallel circuit Branch Current – A portion of the totalcurrent that is present in one path of aparallel circuit.Kirchhoff’s Current Law – The sum of thecurrents flowing into a point in a circuit isequal to the sum of the currents flowing outof that same point.
Online Resource for ETCH 213
Kirchhoff’s Current Law
Online Resource for ETCH 213
IT
= (V
/RS^
)T^
In a parallel circuit, the total current equalsthe source voltage divided by the totalresistance.
Online Resource for ETCH 213
Series circuit and parallel circuit
current comparison
Online Resource for ETCH 213
Faculty: B. Allen
Conductance in a parallel circuit
Conductance (G) = 1/Resistance = 1/RIn a parallel circuit:Total conductance G
T^
= G
R
+ G
R
+ G
R
Online Resource for ETCH 213
Faculty: B. Allen
Resistance in a parallel circuit
...
1
1
1
tan
Re
2
1
=
R
R
ce
sis
Total
OR
...
1
1
1
1
=
R
R
R
R
T
Online Resource for ETCH 213
For equal-value resistors in
parallel
R
=T^
Value of one resistor / Number of resistors
Online Resource for ETCH 213
Faculty: B. Allen
Power in a parallel circuit
P
T^
= P
1
+ P
2
+ P
3
Formulas for calculating power
P = I
×
V
P = V
2 /R
P = I
2 ×
R
Online Resource for ETCH 213
Faculty: B. Allen
Troubleshooting a parallel
circuit
An open component causes I
T^
.
A shorted component causes I
T^
.
and the fuse to blow, causing the circuit to
open.
Variations of a component value may cause
IT
or I
T^
Online Resource for ETCH 213