Splitting Current

Project Number: 44

Description: Build the circuit and set the meter (M6) to the 50mA setting. Push the switch (S2); the meter measures the current from the battery (B4). Part B: Swap the location of the meter with the 3-snap wire marked "B" ("+" side towards the horn (W1). Push the switch to measure the current through the horn. Part C: Swap the "B" location of the meter with the "C" 3-snap. Push the switch to measure the current through the red LED (D1).

Snappy: The current from the battery splits up between the horn and the LED. If you add up the current you measured through the horn and the LED (parts B & C), it should be the same as the current you measured from the battery. (Your result may be a little different, because M6 is a simple meter with low accuracy).