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

Explain first law of newton, Explain Newton's First Law In 1665, at the...

Explain Newton's First Law In 1665, at the age of 23, Newton developed his famous Laws of Motion. They are commonly known as Newton's first, second and third law. Aside from th

Explain methods of demagnetization, Methods of Demagnetization: 1. A ma...

Methods of Demagnetization: 1. A magnet loss it's magnetic properly when it is heated strongly. 2. Practically a magnet can be demagnetized by hammering when it is placed in

What is the velocity of the combined system, A 10 kilogram body initially m...

A 10 kilogram body initially moving with a velocity of 10 meters per second makes a head-on collision with a 15 kilogram body initially at rest.  The two objects stick together.  W

Estimate the specific heat for the substance, It takes 46.0 J to raise the ...

It takes 46.0 J to raise the temperature of an 10.1 g piece of unknown substance from 13.0 o Cto  40.1 o C. What is the specific heat for the substance?

Direction of acceleration and velocity, Direction of Acceleration and Veloc...

Direction of Acceleration and Velocity Knowing the size of a distance or speed is frequently meaningful for creating comparisons. For example, for some reasons it may be enough

Ferrites are which type of material, Ferrites are (A) Ferromagnetic ma...

Ferrites are (A) Ferromagnetic material. (B) Ferrimagnetic materials. (C) Anti ferromagnetic material. (D) Diamagnetic materials. Ans: Ferrites are ferro

Why the bubble form in the spherical shape only , DUE TO SURFACE TENSION WA...

DUE TO SURFACE TENSION WATER MOLECULES TEND TO HAVE MINIMUM SURFACE AREA AND SPHERE HAS THE MINIMUM SURFACE AREA FOR A GIVEN VOLUME AND THEREFORE BUBBLES ARE IN SPHERICAL SHAPE ONL

Evaluate the deepest he could have been, In a movie, Tarzan evades his capt...

In a movie, Tarzan evades his captors by hiding underwater for many minutes while breathing through a long , thin reed . Assuming the maximum pressure difference his lungs can mana

Thermistors, Thermistors Insulators and semi-conductors behave in a dif...

Thermistors Insulators and semi-conductors behave in a different way when the temperature increases, because their resistivity decreases. That is: the resistance of an insulato

Magnitude of k.e. in an orbit, Magnitude of K.E. in an orbit is equal to: ...

Magnitude of K.E. in an orbit is equal to: (1)Half of the potential energy     (2)Twice of the potential energy       (3)One fourth of the potential energy   (4 ) None

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