A brand of lightbulb has a power of 55 W and an efficiency of 1.6%. How much power is wasted as heat by this lightbulb?
A. 54.1 W
B. 1.61 W
C. 38.9 W
D. 0.88 W
The power wasted as heat can be calculated by taking the total power of the lightbulb and subtracting the power that is converted into light.
Power wasted = Total power - Power converted into light
Power wasted = 55 W - (55 W x 1.6%)
Power wasted = 55 W - 0.88 W
Power wasted = 54.12 W
Therefore, the correct answer is:
A. 54.1 W