Physics
27.04.2022 22:16
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A solar panel is used to recharge a battery. The solar panel produces 0.80 W of
A solar panel is used to recharge a battery. The solar panel produces 0.80 W of electrical power. The panel is 20% efficient. What is the power input of the sunlight onto the solar panel? * 1 point 0.16 W 4.0 W 8.0 W 16.0 W
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notearslefttocry14
4,5(30 marks)
Input power, Ip = 4 Watts
Explanation:
Given the following data;
Power output = 0.8 Watts
Efficiency = 20%
To find the power input of the sunlight onto the solar panel;
Mathematically, the efficiency of a machine is given by the formula;
Substituting into the formula, we have;
Cross-multiplying, we have;
Input power, Ip = 4 Watts
dbryrob9148
4,4(46 marks)
Air pressure in a tire is maintained because the air molecules are "D. Constantly running into each other". The air in pumped into the tire faster than it can be released.
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