Resistors in dc circuits, Physics

Assignment Help:

Resistors in dc circuits:

Components are said to be in series when they are connected end-to-end providing only one path for the current.  Thus the same current passes through all the components (including the power supply).  See diagram below.

2204_resiatnce in dc circuit.png

When a current flows through a resistor (or a component having resistance) there is a potential difference between its ends.  Thus where two or more resistors are connected in series the potential difference between the extreme ends is the sum of the individual potential differences.

1105_resiatnce in dc circuit1.png

Hence E = V1 + V2 + V3

But from Ohm's Law V = IR

Therefore E  =  IRTOTAL

So     V1 = IR1             V2 = IR2             V3 = IR3

Thus IRTOTAL      =  IR1 + IR2 + IR3

                            =  I (R1 + R2 + R3)

So RTOTAL           =  R1 + R2 + R3

 


Related Discussions:- Resistors in dc circuits

Importance of engineering materials, Materials are an essential part of an ...

Materials are an essential part of an engineering study. An engineer requires materials to provide shape to his concept and design. Selection of the right material job in the first

Evaluate the change in entropy, Two 1100-kg cars are travelling 95 km/h in ...

Two 1100-kg cars are travelling 95 km/h in opposite directions when they collide and are brought to rest. Estimate the change in entropy of the universe as a result of this collisi

Explain the wave particle duality, Explain the Wave Particle Duality An...

Explain the Wave Particle Duality Any object in the world can be considered to be a particle or wave and will exhibit properties of both. For example, a photon of light, an ele

Lenard atomic model, LENARD ATOMIC MODEL : Lenard  suggested that the at...

LENARD ATOMIC MODEL : Lenard  suggested that the atom must have a lot of empty  in it. Lenard's model of an atom could not explain about the stability and mass of an atom .

Motion, motion mean laws of motion explain explian motion lesson

motion mean laws of motion explain explian motion lesson

How cph takes spin and converts to graviton, How CPH takes spin and convert...

How CPH takes spin and converts to graviton? Answer- A CPH Principle says a CPH moves with constant speed as Vc, Vc>c in any inertial frame and any space, therefore that

Dimension, dimension of electric current

dimension of electric current

Determine the head loss, The pump shown in the figure adds 20 kW of power t...

The pump shown in the figure adds 20 kW of power to the flowing water. The only significant loss is that which occurs across the filter at the inlet of the pump. Determine the head

Refractive astronomical telescope, Refractive Astronomical Telescope: I...

Refractive Astronomical Telescope: It is an optical instrument which is used to see heavenly bodies such as stars, moon and planets is known as telescope. Astronomical teles

Define average and instantaneous acceleration, Average and Instantaneous Ac...

Average and Instantaneous Acceleration: Average acceleration is explained as the change in velocity   over a given time interval. As, The instantaneous acceleration of g

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