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

Beer lambert''s low, what is meant by positive deviation of beer lambert''s...

what is meant by positive deviation of beer lambert''s low?

Give conditions for observation of interference pattern, Give the condition...

Give the conditions needed for production and observation of interference pattern?

Explain ultraviolet radiation, A metal has a work function of 4.80 eV. ...

A metal has a work function of 4.80 eV. Will ultraviolet radiation with a wave length of 385 nm be able to eject a photoelectron from the metal?

Calculate the torque, A painter uses a 25.8-cm long screwdriver to pry the ...

A painter uses a 25.8-cm long screwdriver to pry the lid off of a can of paint. If a force of 85 N is applied to move the screwdriver 60.0° from the perpendicular, calculate t

Motion in one dimension, A packed parachute is dropped from rest from an ai...

A packed parachute is dropped from rest from an airplane. A daredevil is launched straight down rom the plane 3.00s later. Neglecting air resistance, the daredevil catches up to th

Explain adiabatic process, In an adiabatic process, the body neither absorb...

In an adiabatic process, the body neither absorbs heat nor does it refuse energy, i.e. in this phenomena there is no heat exchange (Δ Q  = 0). Thus from first law of thermodynam

Describe what is one beat , If the intensity of sound is maximum at time t ...

If the intensity of sound is maximum at time t = 0, one beat is known as formed when intensity changes into maximum again after becoming minimum once in among.

Advantages of a.c. transmission of power, Advantages of A.C. transmission o...

Advantages of A.C. transmission of power 1. The power can be produced at high voltages. 2. The maintenance of a.c. sub-stations is simple and cheaper. 3. The a.c. voltage

Explain the term critical frequency, Explain the term 'critical frequency' ...

Explain the term 'critical frequency' in relation to sky wave propagation of electromagnetic waves. On a particular day, the maximum frequency reflected from the ionosphere is

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