Mathematics

Problem

Two resistors each of

6\,\Omega

are connected in parallel. This parallel combination is in series with a

4\,\Omega

resistor and connected to a

12\,\text{V}

battery of negligible internal resistance. Calculate the total power supplied by the battery. a)

18\,\text{W}

24\,\text{W}

21\,\text{W}

14.4\,\text{W}