To date, solar radiation is not a practical source of electrical energy for

Question

BlackTom AI · Accepted Answer

The question asks to identify where solar radiation has not been a practical source of electrical energy to date.
Option 1: security lightings in parking lots. In fact, many parking lots use solar-powered lights successfully, especially in remote or off-grid locations, so this is a practical application.
Option 2: electric highway signs. Solar energy is commonly used to power highway signs in various regions, making this a practical use as well.
Option 3: cars. While there is ongoing research and some limited implementations of solar panels on vehicles, powering a typical car’s propulsion and systems solely with solar energy remains impractical due to insufficient energy density, intermittency, and the need for storage and weight considerations; thus this option reflects a domain where solar energy is not yet practically sufficient for widespread use.
Option 4: satellites in orbits around the earth. Solar power is standard on satellites, providing reliable energy in space, so this is a practical solar energy application.
In summary, among the listed options, cars are the scenario where solar radiation has not proven to be a practical primary energy source to date, whereas the other options have seen real-world, functional implementations.

To date, solar radiation is not a practical source of electrical energy for

View Explanation

Log in for full answers

Similar Questions

Over the very long run, the energy source that has the greatest potential to meet humanity's needs is

Section EListen to this mini-lecture on renewable energy and answer the following questions.Questions 13 - 14. Fill in the gaps with ONE WORD from the mini-lecture. 13. In South Australia, Answer Question 13[input] is used by tomato growers to power their indoor farms.

When traced back to the original source - the following energy sources are "originally" from the sun.

What powers our planet and our lives?

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler