A loop made of straight edegs has six corners at `A(0,0,0), B(L, O,0) C(L,L,0), D(0,L,0) E(0,L,L)` and `F(0,0,L)`. Where `L` is in meter. A magnetic field `B = B_(0)(hat(i) + hat(k))T` is present in the region. The flux passing through the loop `ABCDEFA` (in that order) is

Options

A. `B_(0)L^(2)Wb`
B. `2B_(0)L^(2)Wb`
C. `sqrt(2)B_(0)L^(2)Wb`
D. `4B_(0)L^(2)Wb`

Answer

B

Explanation

Flux passing through loop ABCDEFA flux through ABCD+Flux through ADEF
`=(B_(0)L^(2)+B_(0)L^(2))Wb=(2B_(0)L^(2))Wb`