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

Action reaction pairs, A passenger sitting in the rear of a bus claims that...

A passenger sitting in the rear of a bus claims that she was injured as the driver slammed on the breaks, causing a suitcase to come flying towards he from the front of the bus. If

Polarisation, applications of polarisation with explanation

applications of polarisation with explanation

Cadmium rods are provided in a nuclear reactor, Cadmium rods are provided i...

Cadmium rods are provided in a nuclear reactor. Why? Cadmium rods are given in nuclear reactors due to when we begin nuclear reactor then more energy is required for start the

Find out the significancy, In the movie The Shooter starring Mark Wahlber...

In the movie The Shooter starring Mark Wahlberg, it is claimed that coriolis forces need to be taken into consideration when taking a shot at a target 4 kilometres away. To test

Conducting materials, A copper wire whose diameter is 0.16 cm carries a ste...

A copper wire whose diameter is 0.16 cm carries a steady current of 10 A. What is the current density of the wire?Also calculate the drift velocity of the electrons in copper.

How does the elevation affect the boiling point of water, How does the elev...

How does the elevation and air pressure affect the boiling point of water? The only factor that explains the boiling point of water at any altitude is the barometric pressure (

Microscope, principle and working of compound microscope

principle and working of compound microscope

A cubical block of wood weighing, A cubical block of wood weighing 200g has...

A cubical block of wood weighing 200g has a lead piece fastened underneath. Find the mass of the lead piece which will just allow the block to float in water. Exact gravity of wood

What do you mean by dispersion, What do you mean by dispersion? Describe a ...

What do you mean by dispersion? Describe a physical quantity which depends only on the material of the prism for its dispersion. Get an expression for it.

Young double slits experiment, sketch the setup abd show the angulare dista...

sketch the setup abd show the angulare distace between successive dark bands is----------

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