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

Determine the current flowing in the conductor, A 25cm long conductor moves...

A 25cm long conductor moves at a uniform speed of 8m/s by a uniform magnetic field of flux density 1.2T.  Verify the current flowing in the conductor when (a) Its ends are o

Derive zeroth law, Derive Zero'th Law Statement: "two systems in ther...

Derive Zero'th Law Statement: "two systems in thermal equilibrium with a third system separately are in thermal equilibrium with each other".   Explanation :   If A and B

Unit and dimension, find the value of 10J when 1 kg,10cm,and 5 min is given...

find the value of 10J when 1 kg,10cm,and 5 min is given

Two equipotential surfaces , a) Can a gravitational field be added vertoria...

a) Can a gravitational field be added vertorially to an electric field to get a total field? Describe it. b) Can two equipotential surfaces cut down each other? describe it.

Electromagnetic, While music is on you will try to oppose the two ear phone...

While music is on you will try to oppose the two ear phone pieces to attract. Task-I: Will they attract? If yes, why so?

Force, Force: Force may be defined as a push or a pull upon an object. ...

Force: Force may be defined as a push or a pull upon an object.  In the English system the pound (1b) is used to express the value of a force.  For example, we say that a force

Displacement current, Ask quebackground displacement current and its appli...

Ask quebackground displacement current and its applications stion #Minimum 100 words accepted#

Determination of packing fraction of diamond, Determination of packing frac...

Determination of packing fraction of diamond  The co-ordination number of an atom in diamond structure is 4 as can be seen from the unit cell of diamond and is loosely packed.

Compton effect, Compton effect (A.H. Compton; 1923) An effect which de...

Compton effect (A.H. Compton; 1923) An effect which demonstrates that photons (the quantum of electromagnetic radiation) contains momentum. At a stationary particle, a photon

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