Electrical Machines
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How to Size a Single Phase and Three Phase Transformer in kVA? Calculator
How to Calculate the Rating of Single Phase & Three Phase Transformers in kVA We know that a transformer is always rated in kVA. Below are the two simple formulas which…
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Why Can’t We Store AC in Batteries instead of DC?
Why Can’t AC Be Stored in Batteries Like DC? Batteries are electrochemical devices that store energy in the form of direct current (DC). In DC, the polarity of the terminals…
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Three Phase Induction Motors MCQs with Explanatory Answers
3-Phase Induction Motors – Objective Multiple Choice Questions with Explanatory Answers 1. The induction motor is also known as ________. Asynchronous motor Synchronous motor DC motor Servo motor 2. If…
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Battery: Cell & Batteries MCQs with Explanatory Answers
Batteries and Cell MCQs with Explanatory Answers 1. These batteries have connected in ___________. Series Parallel 2. In Ideal case, the Charging current for 200Ah battery would be _________ ?…
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Mini Air-Cooler System from 12V Fan (Homemade form Trash)
Mini Air-Cooler System from 12V Fan as Portable Air-Conditioner (Homemade form Trash) The following fun based toy project is made from the trash which can be used as mini air-conditioner…
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How Many Panels, Batteries, Charge Controller and Inverter Do I Need?
A Complete Guide About Solar Panel Installation. Step by Step Procedure with Calculation & Diagrams Below is a DIY (do it yourself) complete note on Solar Panel design installation, calculation…
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Alternator / Generator – MCQs with Explanatory Answers)
Alternator / Synchronous Generator – MCQs with Explanatory Answers ① The rating of Alternator / Generator may be expressed in ___________? kW kVA kVAR HP ② Most of the Alternators…
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Transformers MCQs With Explanatory Answers
Transformers (MCQs With Explanatory Answers) 1. A Transformer is designed to be operated on both 50 & 60 Hz frequency.For the Same rating, which one will give more out put;…
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Simplest DC Motor Ever – Battery Cell Motor
Simplest DC Motor Ever – Electrical Toy Project for Kids and Beginners Back to Briefing. Motor An electric motor is a device which converts electrical energy into mechanical energy. The…
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Simple Project on Hydroelectric Power Station with Turbine. (Modal)
Basic Model of Hydroelectric Power Station with Turbine. (Modal) Requirements: Spoon 12 number A toy car tire large size A toy car or tape recorder motor (as a generator) Wood…
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