Two resistors of and are connected in series to a dc source

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

Two resistors of

8\,\Omega

and

12\,\Omega

are connected in series to a

24\,\text{V}

dc source. The

12\,\Omega

resistor is rated for a maximum of

15\,\text{W}

. Which statement about its operation is correct? (a) It will dissipate about

12\,\text{W}

and operate safely. (b) It will dissipate about

28.8\,\text{W}

and the rating will be greatly exceeded. (c) It will dissipate about

17\,\text{W}

and the rating will be exceeded. (d) It will dissipate about

15\,\text{W}

and just meet the rating.