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

ELEMENTARY MECHANICS, Ask queA cart of weight 25 N is released at the top o...

Ask queA cart of weight 25 N is released at the top of an inclined plane of length 1m, which makes an angle of 30° with the ground. It rolls down the plane and hits another cart of

Time dilation, A spacecraft is moving relative to the earth An observer on ...

A spacecraft is moving relative to the earth An observer on earth finds that , according to her clock 3601s elapse between 1pm and 2pm on the spacecraft''s clock. what is the space

Define the centripetal acceleration, Two bodies are moving in circular path...

Two bodies are moving in circular paths of equivalent radii.  If the speed of the first body is twice that of the second, the centripetal acceleration of the first body is how

Aluminium, Aluminium   Atomic number 13 ...

Aluminium   Atomic number 13 Symbol Al Atomic weight 26.98154 Discovery W

What is raman shift, Q. What is Raman shift? In 1928 Sir C.V. Raman fi...

Q. What is Raman shift? In 1928 Sir C.V. Raman fined out experimentally that the monochromatic light is scattered when it is allowed to pass through a substance. The scattered

Eddington limit, Eddington limit (Sir A. Eddington) The theoretical li...

Eddington limit (Sir A. Eddington) The theoretical limit on which the photon pressure would go above the gravitational attraction of light-emitting body. i.e., a body emitting

How are solid core fibers terminated, How are solid core fibers terminated?...

How are solid core fibers terminated? The very architecture of solid core fibers creates the precise termination is a not easy operation, although it should be said that in mos

Evaluate the change in entropy, Two moles of an ideal gas expands reversibl...

Two moles of an ideal gas expands reversibly and isothermally to ten times its volume at 25°C. Evaluate the change in entropy during the process. ( R = 8.314 JK -1 mol -1 )

Find total equivalent internal resistances of the batteries, For the circui...

For the circuits shown in Figure the resistors show the internal resistance of the batteries. Find, in each case: (i) The total e.m.f. across PQ (ii) The total equivalent in

Relativity principle, Relativity principle: The principle, employed th...

Relativity principle: The principle, employed through Einstein's relativity theories, that the laws of physics are the similar, at least qualitatively, in all of frames. That

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