References

1. Science Bob: CLEAN PENNIES WITH VINEGAR
2. Exploratorium: COPPER CAPER
3. The Naked Scientists: LEMON-POWERED IPOD - FRUIT BATTERIES
4. Electronics Tutorials: VOLTAGE SOURCES
5. Wikipedia: BATTERY
6. Learning About Electronics: IDEAL VOLTAGE SOURCE EXPLAINED
7. Electrical4u: VOLTAGE SOURCE
8. Wiki Analog: REAL VOLTAGE SOURCES
9. Stack exchange: WHAT CAUSES THE VOLTAGE DROP IN A REALISTIC VOLTAGE SOURCE WHEN THE LOAD CURRENT INCREASES?
10. Math And Science Activity Center: HOW DOES A BATTERY WORK?
11. Power System: HOW DO BATTERIES WORK?
12. Explain That Stuff: BATTERIES
13. Ask An Engineer: HOW DOES A BATTERY WORK?

• Hyperphysics
• Circuit Fantasia
• Quora.com