Make: Electronics

Page 53

Experiment 5: Let’s Make a Battery Higher water level

Greater force creates more flow, because amperage = voltage / resistance, and the voltage has gone up, while the resistance has remained the same.

Higher voltage

Same resistance

Figure 1-80.  When you place two equal batteries in series, you double the voltage.

38

Chapter 1

1.5 volts for twice as long

3 volts

1.5 volts

Figure 1-79.  Greater force generates more flow, as long as the resistance remains the same.

Figure 1-81.  Two equal batteries that are wired in parallel will deliver the same voltage for twice as long as one.


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.