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

Electricity, is it the current or the voltage which is responsible for elec...

is it the current or the voltage which is responsible for electrc shock?

What is a monochromatic light, What is a monochromatic light? Ans: ...

What is a monochromatic light? Ans: Breaking the word down mono denotes one and chromatic means of colour so a fairly literal translation for the adjective monochromatic w

Militancy, discuss the positive and negative of militancy

discuss the positive and negative of militancy

What is parallel-plate capacitor, What is Parallel-Plate Capacitor Para...

What is Parallel-Plate Capacitor Parallel-Plate Capacitor:  Device used to keep electrical potential energy and charge.  It having of two conducting sheets with equal and oppos

Define bar magnet, A bar magnet having of two equal and opposite magnetic p...

A bar magnet having of two equal and opposite magnetic pole separated by a small distance. Poles are not precisely at the last. The smallest distance among two poles is known as ef

Electric field due to a line segment of charge, In computing the electric f...

In computing the electric field at a point call it point P in the first quadrant of a Cartesian coordinate system because of a continuous charge distribution from 0 to L on the x-a

Evaluate how many electrons flow through a wire, Evaluate how many electron...

Evaluate how many electrons flow through a wire when 1A current passes for 1 millisecond? Write two basic differences between p.d. and emf.

Describe newton''s first law, Each object continues to be in its state of u...

Each object continues to be in its state of uniform motion or of rest in a straight line unless completed by some external force to perform otherwise. Newton's first law is real

Illustrate graphs of current against voltage, Graphs of current against vol...

Graphs of current against voltage for two resistors P and Q are shown in Figure. Determine the value of every resistor.

Electricity., what should be the length of a nichrome wire of resistance 45...

what should be the length of a nichrome wire of resistance 45 ohms if the length of a similar wire is 60 cm and resistance is 25 ohms

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