science
posted by Lizette .
Calculate the resistance in a circuit in which a 9volt battery produces 3 amperes. A)3 ohms B)6 ohms C)9 ohms D)27 ohms

R= V/I

27

THERE ARE THREE SOURCES OF RESISTANCE IN A PARALLEL CIRCUIT . TWO OF THEM ARE RATED AT 20 OHMS, THE OTHER AT 10 OHMS .WHAT IS THE CIRCUIT,S TOTAL RESISTANCE