Answer:
Total power = 29 W (Approx)
Explanation:
Given:
Power of headlight(r) = 29.5 W
Power of starter(R) = 2150 W
Voltage of starter = Voltage of headlight = 12 V
Find:
Total power
Computation:
Rt = V² / P
Resistance of headlight
Rh = 12² / 29.5
Rh = 4.88Ω
Resistance of starter
Rs = 12² / 2150
Rs = 0.6697Ω
Equivalent resistance = Rh + Rs
Equivalent resistance = 4.88Ω + 0.6697Ω
Equivalent resistance = 4.9496Ω
Total power = V² / Equivalent resistance
Total power = 12² / 4.9496
Total power = 29.093
Total power = 29 W (Approx)
