1)An insulating sphere of radius a=4 cm has charge Q=10 uC uniformly distributed
ID: 2123799 • Letter: 1
Question
1)An insulating sphere of radius a=4 cm has charge Q=10 uC uniformly distributed throughout.This sphere is surrounded by two concentric conducting shells.The first has an inner rdius of b=7.5cm and an outer radius of c=8.0cm. The seocnd has an inner radius of d=13cm and an outer radius of e=15cm.
(GIVE UNTS IN ALL ANSWERS)
A)Using Gauss's Law , derive the Electric Field at r=3cm?
B)What is the net electric flux through a cubic surface with sides of 9.0cm centered about the insulating sphere?
C)What is the Electric field at (i) r=10 cm; (ii)r=14cm and r=15 cm?
D)What, if any, is the total surface charge density on the inner surface of the outer conducting shell?
Explanation / Answer
a)electric field at (r=3cm)=r^2/2
=3^2/2=4.5
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