Circular loop of a wire and a long straight `I_C` , `I_E` respectively as shown in fig. Assuming that these are placed in the same plane. The mag. field will be zero at the centre of the Loop when separation H is .............................
Options:
(a) `(I_eR)/(I_cpi)`
(b) `(I_cR)/(I_epi)`
(c) `(piI_c)/(I_eR)`
(d) `(I_epi)/(I_cR)`