Troubleshooting
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Why Do LED Indicator Lights Glow Even When Switched OFF?
Why Does the Indicator Light in Some Electrical Appliances Not Turn Off Immediately After the Switch is Turned OFF? You may have observed that when the supply to certain electrical…
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Automotive Blade-Type Fuse Color Codes with Ampere Ratings
Types of Vehicle Fuses and Blade-Type Fuse Color Codes with Current Ratings Vehicle and Automotive Fuses A fuse in a vehicle is a safety device designed to protect the electrical…
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Why Does an Electric Tester Not Work in DC Circuits?
Why Does an Electric Tester Work Only in AC, but Not in DC Circuits? Electric testers, often referred to as voltage testers, phase testers, mains testers or test pens, are…
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Why Does the High-Wattage Bulb Glow Brighter in a Parallel Circuit?
Why Does a High-Voltage Bulb Glow Brightly When Connected in a Parallel Circuit, While a Low-Voltage Bulb Glows Dimly in the Same Circuit? Three light bulbs are connected in a…
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Why Does the High-Wattage Bulb Glow Dimmer in a Series Circuit?
Why Does a High-Wattage Bulb Glow Dimly When Connected in a Series Circuit, While a Low-Voltage Bulb Glows Brightly in the Same Circuit? Three light bulbs are connected in a…
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How to Test Earthing – Grounding System using a Light Bulb?
How to Check the Grounding or Earthing System at Home using a Light Bulb? In today’s tutorial, we will demonstrate how to test and check the earthing or grounding system…
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How to Test Grounding / Earthing System using a Multimeter?
How to Check Earthing and Measure Ground Resistance using a Multimeter? Measuring ground resistance using a multimeter is generally not as accurate as using specialized ground resistance testers, but it…
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How to Measure Earth Loop Resistance Using Ammeter and Voltmeter?
How to Measure Earth Loop Impedance Using Ammeter and Voltmeter? Purpose of measuring earth loop resistance is essentially to determine the resistance of the path through which current flows towards…
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How to Test and Measure the Ground Resistance using a Megger?
How to Check Earthing and Measure Ground Resistance using Megger Earth Tester? A Megger, or Megohmmeter (also known as Megger earth tester), is a specialized instrument commonly used for insulation…
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How to Measure Resistivity of Earth Using Wenner Method?
Wenner 4-Point Method for Testing the Specific Resistance of Soil What is Wenner 4-Point Test? The Wenner Method (named after Dr. Frank Wenner of the US Bureau of Standards in…
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