Question

Electric charge is uniformly distributed along a along straight wire of radius `1 mm`. The charge per centimeter length of the wire is `Q` coulomb. Another cyclindrical surface of radius `50 cm` and length `1 m` symmetrically enclose the wire ask shown in figure. The total electric flux passing through the cyclindrical surface is

A. `(Q)/(epsilon_(0))`
B. `(100Q)/(epsilon_(0))`
C. `(10Q)/(pi epsilon_(0))`
D. `(100Q)/(pi epsilon_(0))`

Answer 1

Correct Answer - b
Total enclosed charge `q= 100Q` coulomb
`phi=(q)/(epsilon_(0))=(100Q)/(epsilon_(0))`