Basic Electricity Paper 2 , May/June 2014  
Questions:   1 2 3 4 5 6 7   Main
General Comments

Question 1
  1.        (i)        Define resistance.

(ii)        State two factors which affect the resistance of a conductor.

  1. The resistance of a conductor is 40 Ω. If the cross-sectional area of the conductor is 4 x 10-6 m2 and resistivity is 1.783 x 10-6 Ωm, calculate the length of the conductor.



The expected answers were:
   (a)(i)           The property of a substance which offers an opposition to the flow of an electric current.                                                                                   
       (ii)          Any two factors stated below
            Length of the conductor;
            Cross-sectional area of the conductor;


                (b)        R =                                                                                                              
                         l =                                                                                                  
                         l =                                                                                                
                         l =                    l = 89.736 m   

The question was on Direct Current Circuit Theory. Candidates that attempted this question did very well. The candidates’ performance was reported good


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