From shocking breakthroughs by Franklin to spark-worthy battles of AC vs. DC, prove you’re the current master.
In a series circuit with only one path for charge to travel, all components share the same what?
Current
That 1.5V or 9V rating refers to the potential difference between a battery’s positive and negative what?
Terminals
In 1831, Faraday moved a bar magnet in and out of a coil; a galvanometer briefly registered what?
Electric current
In early radios and computers, before transistors, which bulky, heat-spewing glass components handled signal amplification?
Vacuum tubes
With the engine running, a steady battery reading around 12 volts points to a failing component of the charging system—what is it?
Alternator