To measure cable current, you use a multimeter by connecting it in series with the circuit. Here's how it works, based on the provided video reference:
Using a Multimeter for Current Measurement
The video demonstrates measuring current in a simple circuit using a multimeter. The key is to break the circuit and insert the multimeter so the current flows through the meter.
Steps:
- Set up your circuit: The video shows a basic circuit with a power source, resistor, and LED.
- Break the circuit: Disconnect a wire or component to create a gap in the circuit.
- Connect the multimeter in series:
- Connect one probe of the multimeter to one end of the break in the circuit (e.g. the resistor).
- Connect the other probe of the multimeter to the other end of the break (e.g. the LED). This completes the circuit using the multimeter.
- Read the measurement: The multimeter display will show the current flowing through the circuit.
Important Note:
- Make sure your multimeter is set to measure current (Amps or milliamps) and that the probes are connected to the correct ports on the meter.
- Always be careful when working with electricity.
Here's a simple way to visualize it:
| Circuit Before Measurement | Circuit During Measurement |
|---|---|
| Power Source -> Resistor -> LED | Power Source -> Resistor -> Multimeter -> LED |
By following these steps, you are now able to effectively measure cable current using a multimeter.
