MABNI.
Spark WorkshopPower Lab
Circuit basics
SPARK’S WORKBENCH

A little light

Battery voltage—volts · V
Current—milliamps · mA
Battery power—watts · W
POWER SOURCE
+
Drop a batteryChoose from the shelf
CURRENT CONTROL
+
Drop a resistorOr a wire link
MAKE SOMETHING HAPPEN
+
Drop a componentLight or motion
V × A = W

Pick a part, then click its place on the bench. You can drag parts too.

Connect the terminals to close the loop.

Make a complete loop

1. Drag a battery, a resistor or wire link, and an LED or motor onto the bench.

2. Click one terminal, then the next matching terminal to join them. Connect battery + → resistor → component +, then component − → battery −.

3. Turn on. Read the meters and watch what happens. Turn off before changing a part.

An LED has a direction. Our motor can turn either way. All experiments here use virtual batteries.

Discovery made!