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

Example on electrostatic shielding, Q. During lightning, it is safer to sit...

Q. During lightning, it is safer to sit inside car than in an open ground. Why? The metal body of the car offers electrostatic shielding where the electric field is zero. Thro

Derive the equation of mass energy relationship , The simple equation E = m...

The simple equation E = mc² is not usually applicable to all these types of mass and energy, except in the special case that the total additive momentum is zero for the system unde

Determine the final velocity of football, An 82-kg receiver, moving 0.75 m/...

An 82-kg receiver, moving 0.75 m/s north, is tackled by a 110.0-kg defensive lineman moving 0.15 m/s east. The football players hit the ground together. Measure their final v

Various types of fixed- value resistors , Th e fixed value resistors are t...

Th e fixed value resistors are those whose resistance are fixed and cannot be changed. The fixed resistors can be further subdivided into following categories. (a)

Force constants, what is the force constants of Gd2MoO6?

what is the force constants of Gd2MoO6?

energy, what is energy distribution functio

what is energy distribution function

What is friction? what are the factors affecting for it? adv, what is frict...

what is friction? What are the factors affecting for it? Advantages and disadvantages of it

Intensities of an ordinary light and laser light, Intensities of an ordinar...

Intensities of an ordinary light and laser light The intensity (I) of a wave is the energy per unit time flowing through a unit normal area. The light from an ordinary light so

What is the magnifying power of the microscope, Q. A compound microscope co...

Q. A compound microscope consists of an objective lens of focal length 2.0cm and an eye piece of focal length 6.25cm separated by a distance of 15cm.How far from the objective sho

The equation of reflected wave is, The equation of reflected wave for soft ...

The equation of reflected wave for soft boundary: y(x.t)=A cos[(wt-kx)] The equation of reflected wave for rigid boundary: y(x.t)=A cos[(wt+kx)] where A=amplitude of the wave

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