Welcome to your Power and Energy Efficiency Name Email Match them to their definitions work done Input energy efficiency definition useful energy efficiency formula useful energy divided by total energy energy in J (Joules) that is transferred by the device the total energy in J supplied to a device The fraction of the energy supplied to a device which is transferred in a useful form power times time Answer the following questions Question 1 At one time, the total power input to the wind turbine was 10 kW.The efficiency of the turbine was 0.25.Calculate the useful power output of the wind turbine. Answer kW Question 2 A solar panel receives a total input power of 5 kW.The efficiency of the solar panel is 0.20.What is the useful power output of the panel?Answer kW Question 3 A hydroelectric dam has an input power of 500 MW.The dam's turbines have an efficiency of 0.8.Determine the useful power output.Answer MW Question 4 A geothermal plant has an input power of 12 MW.The efficiency of the plant is 0.35.What is the useful power output?Answer MW Question 5 A biomass generator has an input power of 250 kW.Its efficiency is 0.28.Find the useful power outputAnswer kW Answer the following questions Question 1: At one time, a wind turbine has a total power input of 15 kW from the wind, and the useful power output is 6 kW. Calculate the efficiency of the wind turbine. Answer: % Question 2: A hydroelectric generator receives 25 kW of power from water flow, but the useful power output is only 20 kW. What is the efficiency of the generator? Answer: % Question 3: A solar panel system absorbs 10 kW of sunlight energy, but the electrical power output is measured at 3 kW. Calculate the efficiency of the solar panel system. Answer: % Question 4: A geothermal power plant receives thermal energy at a rate of 50 kW, and the useful electrical power output is 12.5 kW. Determine the efficiency of the power plant. Answer: % Question 5: A gas-powered generator consumes fuel providing 80 kW of energy but produces a useful electrical power output of 40 kW. What is the generator’s efficiency? Answer: % Answer the following questions Question 1 At one time, the useful power to the solar cells was 5.4 kW.The efficiency of the solar cells was 0.18.Calculate the total power to the solar cells. Answer kW Question 2 At one time, the useful power to the solar cells was 10.5 kW.The efficiency of the solar cells was 0.20.Calculate the total power to the solar cells. Answer kW Question 3 At one time, the useful power to the solar cells was 8.2 kW.The efficiency of the solar cells was 0.25.Calculate the total power to the solar cells. Answer kW Question 4 At one time, the useful power to the solar cells was 6.0 kW.The efficiency of the solar cells was 0.12.Calculate the total power to the solar cells. Answer kW Question 5 At one time, the useful power to the solar cells was 4.8 kW.The efficiency of the solar cells was 0.16.Calculate the total power to the solar cells. Answer kW 1 out of 4 Time's upYou cannot switch tabs while taking this quiz!You are not allowed to switch tabs violation has been recorded.you cannot minimize full screen mode!You are not allowed to minimize full screen while taking this quiz, violation has been recorded.Access denied! To begin the quiz, please grant this quiz access to your camera.Time is Up!Time is Up!
