The expected answers were:

(a)Length of the conductor ()                                                                             

Cross sectional area of the conductor (A)                                                                  

Resistance of the conductor (R)                                                                               

Conductor material

(b)(i)       s = 1 / (μr * μ_oA )             

    = 1675315.19A/Wb 
                              = 1.68  x  10⁶ A/Wb
             (ii)        F  = ΦS  =  B. A. S.
                          =1.6 x  500  x  10^-6  x  1.67  x  10⁶  =  1340A

                           I =  F/N = 1349 / 200

                           = 6.7A/turns 

This question was on direct current circuit theory and electromagnetic field.  This question was not attempted by many.  Those candidates that attempted the question got part (a) correctly but due to lack of thorough understanding computed wrongly reluctance from the given data in      part (b).