The resistance offered by the filter used in a bag filter is proportional to
(where, c = dust concentration, and s = particle size).
(A) c/s
(B) s/c
(C) s . c
(D) 1/s . c
(where, c = dust concentration, and s = particle size).
(A) c/s
(B) s/c
(C) s . c
(D) 1/s . c