a solar panel is exposed to 55 W of sunlight and produces 2,640 J of electrical energy in 1 minute. What is the efficiency of this panel?
To find the efficiency of the panel, we need to use the formula:
Efficiency = (Electrical Energy Output / Solar Energy Input) * 100
Given that the solar panel received 55 W of sunlight for 1 minute, the solar energy input can be calculated as follows:
Solar Energy Input = Power * Time = 55 W * 60 s = 3300 J
Substituting the values into the formula:
Efficiency = (2640 J / 3300 J) * 100 = 80%
Therefore, the efficiency of this solar panel is 80%.
To calculate the efficiency of the solar panel, we need to use the formula:
Efficiency = (Electrical Energy Output / Solar Energy Input) x 100
Given:
- Solar energy input = 55 W (Watts)
- Electrical energy output = 2,640 J (Joules)
- Time = 1 minute
To find the solar energy input, we need to convert the power (55 W) into energy using the formula:
Energy = Power x Time
Energy = 55 W x 60 s = 3300 J (Joules)
Now we can calculate the efficiency using the formula mentioned earlier:
Efficiency = (2640 J / 3300 J) x 100
Efficiency = 0.8 x 100
Efficiency = 80 %
Therefore, the efficiency of this solar panel is 80%.