How to Create Electrical Interference

••• scotspencer/E+/GettyImages

Electrical interference or electromagnetic interference (EMI) is defined by as the "disruption of operation of an electronic device when it is in the vicinity of an electromagnetic field (EM field) in the radio frequency (RF) spectrum that is caused by another electronic device." The disruption comes in two primary forms: conducted interference and radiated interference. Conducted interference is where signals from one electrical conductor is coupled or transferred to a conductor in close proximity. Radiated interference is where signals from a transmitter is picked up by wires in the vicinity.

    Locate the electrical device you are looking to interrupt with interference. For example, assume you want to interfere with a radio in your home.

    Find a device with an electrical motor. Examples include vacuum cleaners and hair dryers.

    Plug both devices into a wall outlet in the same house or building. Since the wall outlets in most houses are tied to the same ground, the ground is a common source of conducted interference, especially from the low frequency hum of an electric motor.

    Turn on both devices at the same time. In the example with radio, you will hear the electrical interference from the device with the electric motor through the radio speakers.

Related Articles

How to Make an Electric Stimulator With Speaker Wires
What Is the Difference Between Conducted & Radiated...
How to Calculate Toroidal Transformers
How to Calculate the Inductance of a Ferrite Inductor
How to Calculate Output Voltage
How to Calculate 30 KW to Amps
How Tone Generators Work
How to Build a Buzzer for a Science Project
The Differences Between Motors & Generators
What Is a Ferrite Clamp?
How to Use a Resistor for 12 Volt to 5 Volt
How to Connect Step-Up 3-Phase Transformers
How to Calculate Electrical Transformer Output
How Does a Toroidal Transformer Work?
How to Convert 12 Volt to 6 Volt
How to Wire a Lighting Contactor
Infrared Vs. Visible Light
How to Measure Inductance of a Coil
How to Design an RC Snubber

Dont Go!

We Have More Great Sciencing Articles!