Physical arrangement of resistors, Physics

Assignment Help:

Physical arrangement of resistors:

Before we look at some problems it is necessary to warn you that physical appearances can be deceptive. When components are mounted they are usually done so in a manner as to reduce the space they occupy to a minimum. Care must be taken to decide whether they are mounted in series or parallel or in a combination of both.

2409_physical arrangement of resistors.png

Thus on the Tag Board above, the resistors may appear to be in parallel, however, only R3 and R4 are in parallel.

SOLUTION OF RESISTOR NETWORKS USING OHM'S LAW

Many problems may be solved by combining series and parallel groups of resistors and applying Ohm's law. Remember that Ohm's law involves three quantities - I, V and R, thus to find any one quantity the other two must be known or be capable of determination. Where resistors appear in both series and parallel they may be reduced to a single effective resistance using a step-by-step sequence as follows.

• Combine any simple series groupings within branches ( R = R1 + R2 + --- ).
2300_physical arrangement of resistors1.png 
• Replace any simple parallel groups by single equivalent resistors  575_physical arrangement of resistors2.png 

2090_physical arrangement of resistors3.png 
• Combine any simple series groupings ( R = R1 + R2 + --- ). 

2269_physical arrangement of resistors4.png 
• Replace any simple parallel groups.
2283_physical arrangement of resistors5.png

• Determine the single equivalent resistance.

70_physical arrangement of resistors6.png

At this point the total circuit current (Is) may be found if Vs is given, or Vs found if Is is given. Having determined Vs or Is, as appropriate, the current in any branch and the voltage drop across any resistor can be found by working backwards through the sequence in the first paragraph of this section, applying Ohm's law at each stage.

 


Related Discussions:- Physical arrangement of resistors

Electricity, two charge(q) each are kept 1m apart, where should third charg...

two charge(q) each are kept 1m apart, where should third charge be placed in order to get third charge -q/4

Ray optics, a tiny air bubble inside a glass slab appears to be 6 cm deep w...

a tiny air bubble inside a glass slab appears to be 6 cm deep when viewed from one side and 4 cm deep when viewed from other side. find the thickness of slab

Determine the volume flow rate, Water flows from a large tank through a lar...

Water flows from a large tank through a large pipe that splits into two smaller pipes as shown in Figure. If viscous effects are negligible (no head loss), determine the volume flo

What is friction forces, A block is considered on a rough horizontal surfac...

A block is considered on a rough horizontal surface. If we give a variable force F on the block and if we enhance the force F continuously then we seem that block remains stationar

Need neuroscience assignment help, Neuroscience is a scientific study of t...

Neuroscience is a scientific study of the nervous system. Usually, neuroscience has been seen considered as a branch of biology. Thus, it is now present an interdisciplinary scien

Give the graphical representation of plane polarized light, Give the graphi...

Give the graphical representation of the end on view of plane polarized light and unpolarized light.

Determine the speed by using a wheel and axle, Using a wheel and axle Us...

Using a wheel and axle Use the pencil sharpener that you used in experiment A 8. Pull on the end of the string that held the books and observe how rapidly the crank turns.

Determine the power absorbed by the circuit, A 20 Ω non-reactive resistor i...

A 20 Ω non-reactive resistor is connected in series with a coil of inductance 80mH and negligible resistance. The combined circuit is connected to a 200V, 50Hz supply. Calcula

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd