Q.
A sphere encloses an electric dipole with charges ± 3 × 10-6 C. What is the total electric flux across the sphere?
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a
6×10-6Nm2/C
b
-3×10-6Nm2/C
c
Zero
d
3×10-6Nm2/C
answer is C.
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Detailed Solution
ϕTotal =qenclosed ε0Dipole have equal and opposite charge, so net charge inside the sphere will be zeroqenclosed =0ϕTotal =0ε0=0
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