In which of the following cases the divergence of the electric field i

1.	In which of the following cases the divergence of the electric field is zero
A.	When electric field flows uniform through open tubes
B.	When electric field is released from the tube
C.	When electric field is within the closed tube
D.	None of above
Answer» D. None of above

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In which of the following cases the divergence of the electric field is zero

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