A). Since the two bulbs are in parallel, each bulb is connected directly across the battery. So the voltage across each bulb is 12 volts.
B). The current in each bulb is (voltage / resistance) =
(12 / 3) = 4 Amperes.
C). The power dissipated by each bulb is (voltage x current) =
12 x 4 = 48 watts
D). The total current from the battery is (4 A per bulb) x (2 bulbs) = 8 Amperes.
E). The power supplied by the battery is (voltage x current) =
12 x 8 = 96 watts
Your generous 1 point per answer is most deeply appreciated.
