Questions
A sphere of radius 1 cm has potential of 8000 V, then energy density near its surface will be
a
64 x 105 J/m3
b
8 x 103 J/m3
c
32 J/m3
d
2.83 J/m3
detailed solution
Correct option is D
Energy density ue=12ε0E2=12×8.86×10-12×Vr2=2.83 J/m3Talk to our academic expert!
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Three point charges of equal value q are placed at the vertices of al equilateral triangle. The resulting lines of force should be sketch as in
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