electric field

Question

sir,in AIEEE ,there was aquwstion regarding electric field and i have some doubt during solving it...plz help me in this question.It goes as...Let there be a spherically symmetric charge distribution with charge density varying as Rho(r)=Rho -not (5/4 -r/R) & rho(r)=0 for r>R,where r is the distance from the origin.The electric field at a distance r(r<R) from the origin is given by1.rho_not r/3Eo(5/4 -r/R)2.4pie rho -notr /3Eo (5/4 -r/R)3.rho-not r/4Eo (5/4 -r/R )4.4Rho-not r/3Eo (5/4-r/R)when i attempted it .my ans was wrong,then aftewr it on seeing its solution ,he has taken dq=rho* 4 pie r square but i have doubt it should be dq=rho *4/3 pie r cube.....becoz it is the volume charge density...plz HELP ME

vikas askiitian expert · Accepted Answer

dq = 4/3 pir3 when charge distribution does not depend on radial distance , if dencity is uniform everywhere inside the sphere then this is true otherwisedq = po(function of r)(4pir2)dr4pir2dr is volume in this case

Electrostatics> electric field...

syed obaid , 13 Years ago

vikas askiitian expert

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Ask a Doubt

Electrostatics question based on earthing of spherical shell

Electrostatics

an object has a charge of 2c and gains 10^19 electrons. the net chaarge on the object becomes??

Electrostatics

A wire with a linear charge density lambda forms a quarter of a cjrclenof radius R and is placed asa shown in thefigure with its centre of curvature at the origin O the electric field at O will be

Electrostatics

Find the value of q so that system remains in equilibrium.. figure attached below

Electrostatics

Find the value of q so that system remains in equilibrium

Electrostatics

Electrostatics> electric field...

syed obaid , 13 Years ago

vikas askiitian expert

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Ask a Doubt

Other Related Questions on Electrostatics

Electrostatics question based on earthing of spherical shell

Electrostatics

an object has a charge of 2c and gains 10^19 electrons. the net chaarge on the object becomes??

Electrostatics

A wire with a linear charge density lambda forms a quarter of a cjrclenof radius R and is placed asa shown in thefigure with its centre of curvature at the origin O the electric field at O will be

Electrostatics

Find the value of q so that system remains in equilibrium.. figure attached below

Electrostatics

Find the value of q so that system remains in equilibrium

Electrostatics