+91-87964 74404
FlagBACK
Question icon
Grade 12Electrostatics

two point charges are kept separated by 4 cm of air and 6cm of a dielectric of relative permittivity 4. the equivalent dielectric separation between them so far their coulombian interaction is concerned is

a) 10cm b) 8 cm c) 5cm d) 16cm

Profile image of shubhayan debnath
12 Years agoGrade 12
Answers icon

2 Answers

Profile image of Arun Kumar
12 Years ago
In a dielectric medium you can assume that the length in air is increased by


Thanks & Regards
Arun Kumar
IIT Delhi
Askiitians Faculty
Profile image of Rafel
8 Years ago
F in air will be equal to force in dielectric . (Kqq`)/r²=( Kqq`)/kx²............ k ->dielectric constantr= √k.xr=4 , k=4 x=2 Hence d=6 +2 = 8 cm

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