Questions
At a point 20 cm from the centre of a uniformly charged dielectric sphere of radius 10 cm, the electric field is 100 V/m. The electric field at 3 cm from the centre of the sphere will be
detailed solution
Correct option is C
Electric field outside of the sphere Eout=kQr2 …(i)Electric field inside the dielectric sphere Ein=kQxR3 …(ii)From (i) and (ii), Ein=Eout×r2xR⇒ At 3cm, E=100×3(20)2103=120V/mTalk to our academic expert!
Similar Questions
If an insulated non-conducting sphere of radius R has charge density . The electric field at a distance r from the centre of sphere will be
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