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

Briefly explain working of michelsons interferometer, Q. Briefly explain wo...

Q. Briefly explain working of Michelsons Interferometer? Michelson designed an instrument for the measurement of wavelength of sodium light, thickness of thin film and for many

Magnetism - basic concepts, Magnetism - Basic concepts: 1. Pole st...

Magnetism - Basic concepts: 1. Pole strength: The ability of a pole  of  a magnet to attract or repel another magnetic pole is called its pole strength. Units : A-m 2.

Define the intensity of the laser in short, Define the Intensity of the las...

Define the Intensity of the laser in short. Intensity: a. Lasers are intense and bright light sources. It is due to coherence and directionality. b. The  intensity  is  e

What do you understand by absorption coefficient, What do you understand by...

What do you understand by "Absorption coefficient"? which is a better absorber of sound, glass or fibre glass?

Constraint relation in pulley., give me a very detailed exlanation of find...

give me a very detailed exlanation of finding d Constraint relaion in strings and how do u find it do set a reference point from which u start taking d Velocities/Accelerations d f

Explain the trajectory of the particle, Question: A positively-charged ...

Question: A positively-charged particle is travelling southward in a downward-directed uniform magnetic field. The magnetic force is the merely force if any acting on the parti

Define galalian transformation, Galalian Transformation   is the equation t...

Galalian Transformation   is the equation that relation the time and position coordinates of a particle from one inertial frame to another inertial frame (where the particle veloci

What is the focal length of the lens, An object that is 24 cm from a convex...

An object that is 24 cm from a convex  lens produces a real image that is 13 cm from the lens. What is the focal length of the lens?

Diffraction, What is the difference between french beans and front office r...

What is the difference between french beans and front office refraction

What is mutual inductance, Two circular coils, one of radius r and the othe...

Two circular coils, one of radius r and the other of radius R are placed coaxially with their centres coinciding. For R >> r, get an expression for the mutual inductance of the arr

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