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

Explain quasi-static isothermal expansion, Explain quasi-static isothermal ...

Explain quasi-static isothermal expansion A method is reversible only if it is quasi-static and non dissipative.   E.g. A quasi-static isothermal expansion of an ideal gas

Advantages of high transmission voltage, Advantages of high transmission vo...

Advantages of high transmission voltage  A) Decreases volume of conductor material: B) Enhance in transmission efficiency C) Reduces percentages line drop

Explain the virtual ground in an operational amplifier, Explain the signifi...

Explain the significance of virtual ground in an operational amplifier? Ans: Significance of Virtual Ground: Fig. (a) illustrates the circuit diagram of basic Inverting Ampl

What does hull speed mean, Q. Illustrate what does hull speed mean? An...

Q. Illustrate what does hull speed mean? Answer:- Hull speed- It is the theoretical limit of a sail craft's speed. It is able to be approximated by the following formula

Microwaves and radio waves, Microwaves and Radio waves: Microwaves are...

Microwaves and Radio waves: Microwaves are produced by high frequency electromagnetic oscillators in electric circuits. Microwaves are electromagnetic waves with wavelengths i

Define entropy of ideal gas, Define Entropy of Ideal Gas? A vessel of ...

Define Entropy of Ideal Gas? A vessel of volume V 1 contains N molecules of an ideal gas held at temperature T and pressure P 1. The energy of a molecule may be written in t

Determine the wavelength of the traveling wave, A string has a linear densi...

A string has a linear density of 7.20 10-3 kg/m and is under a tension of 390 N. The string is 1.9 m long, is fixed at both ends, and is vibrating in the standing wave pattern sho

# ELECTRONICS, #WHAT IS THE PRINCIPLE OF REGULATOR?

#WHAT IS THE PRINCIPLE OF REGULATOR?

What type of material in optical fibres used, What type of material in opti...

What type of material in optical fibres used? Material in optical fibres: Optical fibres are generally made along with two kinds of materials that are glass (silica) and pla

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