What is Reverse Polarity?
Have you ever been zapped when touching a lamp? How about plugging in a perfectly good blender, only to have it crackle and smoke… even …
What is an Electrical Circuit? Types of Circuits & Examples
You don’t think much about it when you walk into a room and flip the light switch do you? How about using your phone or …
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Why Calibration Is Required in an Analog Multimeter
The multimeter is a very useful and important tool for electronics hobbyists and for professionals. Even though analog multimeters are very useful, it is necessary …
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How to Test a Fusible Link with a Multimeter
Fusible links are a common safety feature in automotive wiring. They are self-resetting fuses found in the main power feed to devices. If a short …
How to Use a Multimeter to Test Conductivity
A multimeter is one of those basic tools that you will often use if you work with electronics. It allows you to measure voltage, resistance, …
How to Check a Dead Motherboard with a Multimeter
When a circuit board stop working, the first thing you should try is to check the connections. If a jack is loose or there’s a …
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How to Test a NiMH Battery with a Multimeter
Testing batteries is a critical step in electronics recycling. You need to be able to determine when a battery is too old to use. Fortunately, …
How to Test a Wiring Harness with a Multimeter
Wiring harnesses are a great way to keep your car’s wiring neat and organized while also making sure that everything works properly. Testing these harnesses …
How to Test a Doorbell Transformer without a Multimeter
So, you’ve got a doorbell transformer, and you’re not sure if it’s working or not. But you don’t have a multimeter. No worries. In this …
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How to Test a 7-Pin Trailer Plug with a Multimeter
Most people who are involved in towing have to deal with 7-pin connectors which are used in towing. These connectors are a vital part of …
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