Generating Electricity
3 important questions on Generating Electricity
Give advantages and disadvantages for solar power
+ Renewable, No harmful gases
- Expensive, inefficient, only work in day
- Expensive, inefficient, only work in day
What is a pumped storage system?
Hydroelectricity but the water is pumped back up when the demand for electricity is low
Why are step-up transformers used in the national grid?
Higher voltage means smaller current, less energy lost as heat
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
