Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. Predict how changing each variable will affect the resistance.
I just purchased crackle subway tile (3x6) for our backsplash. As I was shopping around it seemed that $12-15 per square foot was the average price. You can get cheaper but they were VERY basic. I ended up with a Sonoma tile which was hand molded and cost $20 square foot.
The cost to Install a Kitchen Backsplash starts at $20.83 - $37.66 per square foot, but varies significantly with common options. Get real costs for your SPECIFIC project requirements here. See the time to install a kitchen backsplash, along with per unit costs and material requirements.