+91-87964 74404
FlagBACK
Question icon
Grade 12Electrostatics

A sphere of radius R has a volume density of charge p=kr where r distance from the centre of the sphere and k is constant the magnitude of the electric field which exist at the surface of the sphere is given by (epsilon eo=permittivity of free space
a)4πkR'4/3eo
b)kR/3eo
c) 4πkR/eo
d) kR'2/4eo

Profile image of shumaila shuaib
6 Years agoGrade 12
Answers icon

2 Answers

Profile image of chetan jangir
6 Years ago
Hi dear, Answer must be D.
Calculate the within sphere that from center to disatnce R and then apply formula E=kq/r^2
 
Profile image of Yashraj
6 Years ago
assume a elemental hollow sphere and calculate the total charge 
which will be 
kR4
and apply guass law assuming spherical urface of radius r around sphere
 
nice question the game is integration

Other Related Questions on electrostatics

question mark
Electrostatics question based on earthing of spherical shell
electrostatics
1 Answer Available

Last Activity: 3 Years ago

question mark
an object has a charge of 2c and gains 10^19 electrons. the net chaarge on the object becomes??
electrostatics
1 Answer Available

Last Activity: 4 Years ago

question mark
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
1 Answer Available

Last Activity: 4 Years ago

question mark
Find the value of q so that system remains in equilibrium.. figure attached below
electrostatics
1 Answer Available

Last Activity: 4 Years ago

question mark
Need to find the time taken for the dipole to come back to eqm
 
electrostatics
1 Answer Available

Last Activity: 4 Years ago