Questions – Answers
Electrical and Electronics Engineering Interview Questions and Answers
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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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What is Power Factor (Cos ϕ) ? Cos fi or P.F Definition & Formulas
Power Factor Definitions and Formulas In electrical engineering, power factor is only and only related to AC circuits i.e. there is no power factor (P.f) in DC circuits due to…
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Why Can’t We Store AC in Batteries instead of DC?
Why AC Can’t be Stored in Batteries like DC? We cannot store AC in batteries because AC changes their polarity up to 50 (When frequency = 50 Hz) or 60…
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Three Phase Induction Motors MCQs with Explanatory Answers
Three Phase Induction Motors MCQs with Explanatory Answers 1. If the frequency of 3-phase supply to the stator of 3-phase induction motor is increased, then synchronous speed is ________? Increased…
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The Main Difference between Active and Passive Components
What is the Difference between Active and Passive Components? The following basic explanatory post with examples shows the key differences between active and passive components and devices. Active Components: Those…
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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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How to Test a Capacitor using Digital and Analog Multimeter – 8 Methods
8 Methods to Check and Test a Capacitor using a Digital Multimeter (DMM) or an Analog Multimeter (AVO). In most electrical and electronics troubleshooting and repair tasks, a common challenge…
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Capacitors MCQs with Explanatory Answers
Capacitors MCQs with Explanatory Answers 1. The Mark on Ceramic or Non-Polarized Capacitors is “104”. What is the value of Capacitor? 104 µF 10000 µF 10000 nF 100000 pF 2. …
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Power System MCQs with Explanatory Answers
Power System MCQs with Explanatory Answers (Generation, Transmission and Distribution MCQs with Explanatory Answers ) 1. Volume of The Conductor is inversely proportional to the ____________. Voltage (V) Half of…
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Basic Concepts (MCQs With Explanatory Answers)
Basic Concepts (Electrical Fundamentals) MCQs With Explanatory Answers 1. What is The Basic Three Electrical Quantities. Resistance, Capacitance, Inductance Power, Voltage, Conductance Voltage, Current, Resistance(Impedance) Current , Reluctance, Inductance 2. …
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