Questions – Answers

Electrical and Electronics Engineering Interview Questions and Answers

What is Electrical Energy? Its Unit, Formula & Applications

Electrical Energy, Its Unit, Formula and Applications What is Energy? Energy is the capacity for doing work or the ability to do some work is known as energy. Energy exists…
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Why Does the Heating Element Glow but Not the Cord of Heater?

Why Does the Heating Element Glow While the Cord of the Heater Doesn’t? It is a matter of common experience when the element of the heater connects to the electric…
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What is Joule’s Law and Heating Effect of Current

Joule’s Law – Joule Effect or Heating Effect of Current and its Applications An English physicist James Prescott Joule discovered the Joules’ law (also known as Joel’s effect, Joule-Lenz law…
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Fleming’s Left Hand Rule and Fleming’s Right Hand Rule

Fleming’s Left and Right Hand Rules – What is the Difference? John Ambrose Fleming introduced these useful rules in the late 19th century which are applicable in magnetism and electromagnetism.…
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Advantages of Three Phase System Over Single Phase System

Advantages of 3-Phase Power over Single Phase Power System A three phase power generation, transmission and distribution system is very common around the world due to solid advantages over single…
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Difference between Synchronous and Asynchronous Motor

What is the Difference between Synchronous and Asynchronous Motor (Induction Motor) The electrical motors are machines that convert electrical energy into mechanical energy for performing mechanical operations. These motors can…
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Difference Between Single Phase & Three Phase Induction Motor

Main Difference between Single Phase and Three Phase Induction Motor The Induction motor is a type of AC motor that works on the principle of electromagnetic induction between the stator…
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Difference Between Single Phase and Three Phase Power Supply

Main Difference between Single Phase & Three Phase Power Supply The power generation and distribution started in mid-1880 and since then the AC power supply has been used for powering…
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What is Electrical Power? Types of Electric Power and their Units

What is Electric Power & How to Calculate its Different Types with Units Electricity is one of the basic necessities in these modern times & we cannot imagine our life…
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What is Resistance? Resistivity (ρ) & Specific Resistance Ω.

Electrical Resistance, Its Unit, Types, Calculation & Applications Just like voltage and current, the electrical resistance is a basic parameter of electricity. It is necessary to understand it because it is…
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