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 humidity of air by different thermometers, The humidity of ai...

The humidity of air can be determined by use of two different thermometers; a 'dry bulb' thermometer and a 'wet bulb' thermometer.  With reference to a suitable text book, explain

Types of superconductors, Type 1 and type 2 superconductors: For one gro...

Type 1 and type 2 superconductors: For one group of SUPERCONDUCTOR in which below H c is in the Meissner state, where it excludes all the magnetic flux from the interior of the

Work, Work: In its technical sense, work is the product of force and di...

Work: In its technical sense, work is the product of force and distance, and work is done only when a force causes movement.  We can see this by the formula: Work = Force x

Ac current, what is alternating current

what is alternating current

Help, Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon a...

Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, the balloonist main

Force, What is SI unit of force

What is SI unit of force

Determine the evaporation rate, An industrial process involves the evaporat...

An industrial process involves the evaporation of water from a liquid film that forms on a contoured surface. Dry air is passed over the surface, and from laboratory measurements t

Who scientist is responsible for the exclusion principle, Which of the foll...

Which of the following scientists is responsible for the exclusion principle which states that two objects may NOT occupy the same space at the same time?  Was it: a) Heisenbe

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