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Engineering Physics · Q79

Electromagnetic Theory

Engineering and GATE · Engineering Physics · question 79

Q79

An insulating sphere of radius a carries a charge density ( r ) = _0 ( a^2 - r^2 ) ;\,r < a. The leading order term for the electric field at a distance d, far away from the charge distribution, is proportional to

An insulating sphere of radius a carries a charge density      The leading order term for the electric field at a distance d, far away from the charge distribution, is proportional to
A.
d-1
B.
d-2
Answer
C.
d-3
D.
d-4

Answer: Option B

Solution

Answer: Option B
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