question_answer

A charge  is placed at the centre of the open end of cylindrical vessel. The flux of the electric field through the surface of the vessel is                                                 [MNR 1998]

A)                    Zero

B)                                     

C)                   

D)                                     

Correct Answer: C

Solution :

           To apply Gauss's theorem it is essential that charge should be placed inside a closed surface. So imagine another similar cylindrical vessel above it as shown in figure (dotted).