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

How fast is the car moving at the top, A roller coaster starts from rest at...

A roller coaster starts from rest at the top of an 18m hill. The car travels to the bottom of the hill and continues up the next hill that is 10.0m high. How fast is the car moving

Calculate the top heat loss coefficient, Calculate the top heat-loss coeffi...

Calculate the top heat-loss coefficient for a solar collector with a single glass cover having the following specifications (neglect edge effects), also calculate the ambient air t

Explain drift velocity of free electrons, Explain 'drift velocity of free e...

Explain 'drift velocity of free electrons'? Derive Ohm's law on the basis of the theory of electron drift.

Scintillator counter, Ask question #Minimum 10theory0 words accepted#

Ask question #Minimum 10theory0 words accepted#

What are the reasons for loss of residual magnetism, What are the basic rea...

What are the basic reasons for loss of residual magnetism? How do you get it? What is the requireable and maximum DC voltage is to be applied to get back the residual magnetism?

Kinametics, assiament on kinametics theory of gas

assiament on kinametics theory of gas

Name the types of photoelectric cells, Q. Name the types of photoelectric c...

Q. Name the types of photoelectric cells? The photo electric cells are of three kinds: A) Photo emissive cell B) Photo voltaic cell and C) Photo conductive cell.

Physics Project - Black Holes, I really just need an interview with someone...

I really just need an interview with someone (it''s a total of nine questions). I have had trouble getting responses and I''m getting desperate about making my deadline. I will als

Length of the solenoid. , The magnetic field B inside a solenoid, having a ...

The magnetic field B inside a solenoid, having a current of 5 A, is 3.14 X 10 -2 T. Determine the number of turns per unit length of the solenoid.

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