A solar cell with an efficiency of 15% drives a small motor with an efficiency of 86%. What is the overall efficiency of the system? Enter your answer in % rounded to two decimal places
Added by -Scar V.
Step 1
The solar cell has an efficiency of 15%, which means it converts 15% of the solar energy it receives into electrical energy. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 96 other Physics 102 Electricity and Magnetism educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A solar cell with an efficiency of 12% drives a small motor with an efficiency of 85%. What is the overall efficiency of the system? 2. Power is directly proportional to the resistance times the current squared. True False 3. The horsepower is a measure of the mechanical power of a system.
Adi S.
Electric solar cells can produce electricity with $15 \%$ efficiency. Compare that to a heat engine driving an electric generator of efficiency $80 \%$. What should the heat engine efficiency be to have the same overall efficiency as the solar cells?
A solar panel measures 80 cm x 50 cm. In direct sunlight, the panel delivers 3.2 A at 15 V. If the intensity of sunlight is 1 000 W/m2, what is the efficiency of the solar panel in converting solar energy into electrical energy?
Madhur L.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD