the headlamp of a car takes a current of 0.4 ampere from a 12 volt supply. the energy produced in 5 minutes is
1 answer:
Voltage (V) = 12 v
Current (I) = 0.4 A
Time (t) = 5min = 300sec
Power = Voltage x Current
= V x I
= 12 x 0.4
Power = 4.8wats = 4.8W
Power = Energy / Time
Energy = Power x Time
Energy = 4.8 x 300
Energy = 1440 joules
Final answer : 1440J
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