Temperature Coefficient of Resistance- Formula & Solved Problems
The temperature coefficient of resistance is the parameter that shows the relationship between the variation of resistance with an increase in temperature. The resistance of
Basic Electrical
Electron Volt or eV | Unit of Energy
In atomic and nuclear physics, the electron Volt or eV is used as a unit of energy. Joule is also a unit of energy, but
Electric Current and Theory of Electricity
What is an Electric Current? The electric current flows in the circuit if a potential difference exists. The potential difference is the pressure that causes
Measurement of Insulation Resistance
What is Insulation Resistance Test or IR Test? The Insulation Resistance Test measures the Insulation resistance of a device under test, while phase and neutral
How to Calculate NGR Resistance Value?
What is NGR? NGR-Neutral Grounding Resistance. NGR limits the ground fault current to the equipment’s safe operating current range to protect all the electrical equipment.
Polarization Index Test and DAR Test
The polarization index test is a 10-minute to 1-minute ratio test of insulation resistance. Similarly, the DAR test is a 60-second to 30-second insulation resistance
What is the effect of the speed regulator of a ceiling fan on power consumption?
This article describes how the power consumption of a ceiling fan changes with a change in the speed through a fan regulator. The conventional fan
Difference between Earthing, Grounding, and Neutral
In this article, we will explore the difference between grounding and neutral in electrical systems. While grounding and earthing may seem like interchangeable terms, there
Energy Efficient Motors
Energy efficient motors are the most economical because these motors have higher efficiency than conventional motors like EFF-1 and EFF-2. The economic production of the
What is difference between AC and DC Resistance of a conductor?
What is the difference between AC and DC Resistance? The AC resistance is always more than the DC resistance. Let us understand what is the