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

State faradays laws of electromagnetic induction, Q State Faraday's laws of...

Q State Faraday's laws of electromagnetic induction. First law At any time the amount of magnetic flux linked with a closed circuit changes an emf is induced in the circu

Energy 2 worksheet , Two pole vaulted clear the bar at the same height. The...

Two pole vaulted clear the bar at the same height. The first lands at a speed of 8.90 m/s and the second lands At a speed of 9m/s the first vaulted clears the bar at a speed of 1

Electromagnetic induction, i need to think of a project to assemble as soon...

i need to think of a project to assemble as soon as possible but i need some ideas.. what projects can i present??

Moment, Moment, Centre of mass and Centroid Moment of force is tendency...

Moment, Centre of mass and Centroid Moment of force is tendency of the force to twist or rotate an object. A measure of the body's resistance to the angular acceleration, which

Is the fiber end important, Is the fiber end important? So far as the a...

Is the fiber end important? So far as the actual light output the fiber termination has little affects on the overall light output. However, it is very important; while at the

With the help of relevant diagrams define ppm, With the help of relevant di...

With the help of relevant diagrams, define the following terms: (i) Pulse-position modulation (PPM) (i) Pulse-duration modulation (PPM)

What is the type of bonding in silicon, What is the type of bonding in sili...

What is the type of bonding in silicon? (A) Ionic. (B) Covalent. (C) Metallic. (D) Ionic + Metallic Ans: Bonding in silicon is covalent type.

Image of this object formed in concave mirror-wave optics, The focal length...

The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed? Ans: The image of given ob

What does go in a circuit, A circuit contains of a 10 volt battery connecte...

A circuit contains of a 10 volt battery connected in series with a 4 ohm resistor and a 6 ohm resistor. Why is it complete nonsense to say that 4 volts goes through the 4 ohm resis

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