The expected answers were:

1.  Ohm’s law states that the potential difference across two points of a circuit is   proportional to the current produced provided the temperature is kept  constant.

1.  The phasor diagram required is:

1. (i)  V = IR

      R =  =  100 Ω
(ii) Power = I2R = VI =
      P = 2.42 x 100 = 240 x 2.4 =  = 576 W
The question was on Direct Current Circuit Theory. It was well attempted by candidates. Many candidates encountered some challenge with the phasor diagram.