Questions – Answers

Electrical and Electronics Engineering Interview Questions and Answers

What is the Role of Capacitor in a Ceiling Fan?

Why a Capacitor is used in a Ceiling Fan? The most common question in electrical engineering interviews is about the main function of a capacitor in a ceiling fan. In…
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How to Replace a Ceiling Fan Capacitor – 3 Ways

How to Install and Connect a Capacitor in a Ceiling Fan? If you ever face a problem with the ceiling fan such as humming noise, slow speed, not running the…
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How to Size and Find the Numbers of Ceiling Fan in a Room?

How to Calculate the Numbers of Fans and Proper Size of Ceiling Fan? Generally, the power wattage of a ceiling fan is 100 watts. For this reason, no more than…
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Blocking Diode and Bypass Diodes in a Solar Panel Junction Box

Bypass Diode and Blocking Diode Working used for Solar Panel Protection in Shaded Condition In different types of solar panels designs, both the bypass and blocking diodes are included by…
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How Much Watts Solar Panel Do You Need for Home Appliances?

How to Select the Proper Solar Panel Rating for Household Appliances? If you are going to install a solar panel system (off grid or on grid) and want to find…
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Why Does A Capacitor Block DC But Pass AC?

Why Does a Capacitor Allow AC and Block DC? One of the most common question asked by electrical engineering students again and again that’s why do capacitors block DC and…
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Difference Between Conductor, Semiconductor and Insulator

What is the Difference Between Conductors, Semiconductors and Insulators? The main difference between the conductor, semiconductor & insulator is in its conduction state. The conductors always conduct electric current while…
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Difference Between Conductor and Superconductor

What is the Difference Between Conductor and Superconductor The main difference between a conductor and superconductor is that a superconductor has zero electrical resistance while conductors have some finite resistance.…
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AC Voltage at Home is 230V but its Equation is v = Vm Sin θ. Explain?

Domestic AC Voltage at Home is 230V but its Equation is v = Vm Sin θ. Explain the Difference? Our homes are supplied with sinusoidal voltage whose equation should be…
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Difference Between Voltage and EMF?

Fundamental Difference Between EMF and Voltage? What is a Voltage? The required amount of energy to move the unit charge from one point to another is known as Voltage. In…
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