Compare the resistances, Physics

Assignment Help:

Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances.

Solution)
Given lengths l1=1

                         l2=4

Given radius r1=1

                        r2=2

 Given  specific resistances Ρ(rho)1=3

               Ρ2= 1

we know the R=Ρl/A

              R1/R2=3/1.


Related Discussions:- Compare the resistances

Nucleons together in a nucleus, What does held nucleons together in a nucle...

What does held nucleons together in a nucleus? Nuclear force. It is the nuclear force which fasten the nucleons together and is responsible for the stability of nucleus.

Internal energy of a system, What occures to Internal Energy of a system ,i...

What occures to Internal Energy of a system ,if work is done (a) on the system, (b) by the system.

Magnetic force does the wire experience, Consider a 10 cm long portion of a...

Consider a 10 cm long portion of a straight wire having a current of 10 A placed in a magnetic field of 0.1 T making an angle of 530  with the wire. What magnetic force does the wi

Evaluate the velocity of electron, A radioactive atom is moving with respec...

A radioactive atom is moving with respect to the laboratory at a speed of 0.3 c in the x direction. If it emits an electron having a speed of 0.8 c in the rest frame of the atom, E

What is the cause of brownian motion, What is the cause of Brownian motion?...

What is the cause of Brownian motion? Molecules in a gas move constantly, freely, randomly, in all directions and at high speeds. They are able to do so because the intermolecu

Einstein field equation, Einstein field equation The cornerstone of Ein...

Einstein field equation The cornerstone of Einstein's general theory of relativity, relating to the gravitational tensor G to the stress-energy tensor T through the simple equa

binding power of a hydrogen molecules, Binding energy of a system is descr...

Binding energy of a system is described as the energy released when its constituents are brought from infinity to form the system. It can also be explained as the energy required s

Does solar radiation contain a complete spectrum, Does solar radiation cont...

Does solar radiation contain a complete spectrum of all forms of electromagnetic radiation? Yes it does. It have all the forms of radiation, but 99% of its energy is carried

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