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

Dimension, the force of a capillarity in plant is given by surface tension ...

the force of a capillarity in plant is given by surface tension =density*r*g*h/2.is the equation correct or not

Bodes law, Bode's law, Titius-Bode law A mathematical formula that gene...

Bode's law, Titius-Bode law A mathematical formula that generates, along with a reasonable amount of accuracy, semimajor axes of the planets in order out from the Sun. Write th

Illustrate the electric field lines of a point charge q, The electric field...

The electric field E because of a point charge at any point near it is explained as where q is the test charge and F is the force acting on it. What is the physical significance of

Bronze, Bronze: Copper when alloyed with tin (8% to 16%) and a very small ...

Bronze: Copper when alloyed with tin (8% to 16%) and a very small percentage of a third element like cadmium, beryllium, phosphorous, silicon etc, is called Bronze. Bronzes are gi

Determine the maximum amount of power, Water accelerated by a nozzle to 20 ...

Water accelerated by a nozzle to 20 m/s strikes the vertical back surface of a cart moving horizontally at a constant velocity of 5 m/s in the flow direction. The mass flow rate of

What path does an asteroid take, Q. Illustrate what path does an asteroid t...

Q. Illustrate what path does an asteroid take? Answer:- The asteroid will forever take the path minimizing its Lagrangian recognized as the least action principle in Lagra

Kirchhhoff''s second law, I have a circuit and using Kirchhoff''s second la...

I have a circuit and using Kirchhoff''s second law I need to find the current across one of the battery. How should I do that?

How far is the seismograph from the earthquake, When an earthquake occurs, ...

When an earthquake occurs, two types of sound waves are generated and travel through the earth. The primary, or P, wave has a speed of about 7.5 km/s and the secondary, or S, wave

Evaluate the minimum value of h in terms of r, A sled slides down a frictio...

A sled slides down a frictionless track and loops the loop without falling off. What is the minimum value of h  in terms of  r ? The only other information given is that the an

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