18 Measuring current

To measure the current flowing in the circuit we need to insert the multimeter into the circuit.

Turn the dial of the multimeter to mA. This switches the multimeter to become an ammeter (a device that measures current).

Unclip the alligator clip connected to the LED and connect it to the red (positive) probe of the multimeter.

Find a third jumper wire having alligator clips. Clip one end of the jumper wire to the black (negative) probe of the multimeter and clip the other end to the positive terminal of the LED. The LED should turn on and the multimeter should display a reading:

18.1 Record the measured current

Edit the script lab2.m and complete it so that the current in milliamps (mA) measured by the multimeter is stored in a variable named current.