Answer:
It will take time=7.963 hours to completely discharge
Explanation:
The energy available in the battery is:
Energy stored=Power×Time
Energy stored=(ΔV)I×t
Energy stored=(12.0V×43.0A.h)
Energy stored=516 W.h
The two headlights together consume a total power of:
[tex]P=2*32.4W\\P=64.8W[/tex]
So the time required to completely discharge is:
[tex]time=\frac{Energy.stored}{P}\\ time=\frac{516 W.h}{64.8W}\\ time=7.963hours[/tex]
It will take time=7.963 hours to completely discharge
Answer:
9.76 h.
Explanation:
Given:
V = 12 V
I × t = 43 Ah
Power, P = 32.4 W
Assume, 2 headlights:
P = 64.8 W
Power = Energy/time
Energy = I × V × t
= 43 × 12
= 516 J
Time = 516/64.8
= 7.69 h.
