Do resistors save energy?

Related questions

1. Why are LED lights better?
2. How a single LED emits different Colours?
3. Is anode positive or negative?
4. Can I connect led without resistor?
5. What is the voltage required for an LED?
6. What is common anode led?
7. What is led explain?
8. What's wrong with LED lights?
9. What are the advantages of LED?
10. Can you burn out an LED light?

Tags

1. #general
2. #resistor
3. #flows
4. #using
5. #initial
6. #given
7. #voltage
8. #water
9. #electricity
10. #through
11. #smaller
12. #reduced
13. #force
14. #amount
15. #analogy
16. #current
17. #think
18. #power
19. #making
20. #which