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

Calculate uniform magnetic field, The greatest induced EMF will happen in a...

The greatest induced EMF will happen in a straight wire moving at constant speed by a uniform magnetic field. when the angle among the direction of the wire's motion and the di

Determine the dynamic resistance, A coil of resistance 1.5k Ω and 0.25H ind...

A coil of resistance 1.5k Ω and 0.25H inductance is connected in parallel with a variable capacitance across a 10V, 8kHz supply. Calculate (a) the capacitance of the capacitor

Bernouli Theorem, what is Bernouli Theorem defined and proof now?

what is Bernouli Theorem defined and proof now?

.gravitation, iif radius shrinks by 20% then what will be the effect on gra...

iif radius shrinks by 20% then what will be the effect on gravitational acceleration

Laws of charges, What is the appropriate assignment for this particular top...

What is the appropriate assignment for this particular topic?

Explain periodic motion, When a body or a moving particle repeats its motio...

When a body or a moving particle repeats its motion along an exact path after regular parts of time, its rotation is said to be Periodic Motion and interval of time is known as per

The wheatstone bridge, The wheatstone bridge: You have already solved r...

The wheatstone bridge: You have already solved resistor networks using Ohm's law and Kirchoff's laws.  In this unit we are going to look at a special arrangement of series and

What is described by millikan experiment?, The Millikan experiment showed t...

The Millikan experiment showed that electric charge was: a) Negative b) Quantized c) Positive d) Immeasurable Ans: The Millikan experiment showed that elec

State rutherfords experiment, In Rutherford's experiment including the defl...

In Rutherford's experiment including the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered

What are the two properties of electromagnetic waves, What two properties o...

What two properties of electromagnetic waves are used to attach info to radio signals? a) By varying the amplitude of a radio wave, you can determine information. That is how A

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