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Friday , 20 October 2017
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What is Reactive Power?

What is reactive power?

What is Reactive Power? First, let us consider what reactive power is mathematically and then we will see what it means practically. Active power = Voltage * component of current in phase with the voltage i.e. V*I cos(theta) Reactive power = Voltage * component of current 90 degrees out of phase with voltage i.e. V*I sin(theta) Where theta = angle ...

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What Is Difference Between Squirrel Cage and Wound Rotor Induction motor?

Difference Between Squirrel Cage and Wound Rotor Induction motor

Difference Between Squirrel Cage and Wound Rotor Induction motor To understand the Difference Between Squirrel Cage and Wound Rotor Induction motor I’m here to describe some main points that will make you understand the basic BUT main Difference Between Squirrel Cage and Wound Rotor Induction motor. Construction squirrel cage induction motor Squirrel cage induction motor (SCIM) consists of a cylindrical rotor on ...

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What’s the basic difference between a fuse and a circuit breaker?

What’s the basic difference between a fuse and a circuit breaker?

What’s the basic difference between a fuse and a circuit breaker? Fuses are generally metal strips which melt and disconnect the supply of power in case of current higher the particular current flowing through the circuit. Fuse destroys his life to save the person or the equipment, Once fused, it needs to be replaced. While circuit breakers can be considered ...

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Why Does a Capacitor Allow AC But Blocks DC?

Why Does a Capacitor Allow AC But Blocks DC?

Why Does a Capacitor Allow AC But Blocks DC? Look at the picture for reference. I will try to explain this thing in the easiest possible manner. So first of All… What is a capacitor? Basically, a capacitor is nothing but 2 parallel metal plates separated by an insulator. The insulator can be anything like paper, air, rubber, plywood, mika, ...

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Lightning Phenomenon

Lightning Phenomenon

Lightning is an electrical discharge. It is the high – current discharge of an electrostatic electricity accumulation between cloud and earth or between clouds. Before understanding lightning phenomenon, you should keep two things in mind. The ice crystals in an active cloud are +vely charged The water droplets are usually carry –ve charges. Therefore, a thundercloud has a +ve charge ...

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Why AC Needs More Insulation Than DC at Same Voltage Level?

Why AC Needs More Insulation Than DC at Same Voltage Level?

For the same voltage of AC and DC, the potential stress on the insulation is different in both cases. The potential stress on the insulation is less in the case of DC system, than that in the case of AC system. REASON let say we have 220 Volt DC, it means the maximum value or in other words peak value of ...

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What is Resistor? And how Resistor Works?

When you learn about electricity, you actually learn about two materials the Conductors and the Insulators.  The conductors such as the metals that let the electricity to flow from them; and the insulators such as the materials that not allow electricity to pass from them. But is it as simple as it sounds!, any substance will conduct electricity if provided ...

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Why Electricity Should Be Off While Raining?

It is being seen in almost every non developed country that while raining electricity starts blinking on and off or being off while its raining, but the question is why Electricity Should Be Off While Raining always? I’m here to answer this question with some facts that you should know before starting to say bad words about WAPDA (Kidding :P).

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How To Get MUET VPN Account

MUET VPN Account

If you are studying at MUET (Mehran University Of Engineering And Technology) then being the student of MUET you must have the right to access unlimited online E-Books, research papers for thesis and projects as this facility was not available for students of BE before, but now it is available for all students to access unlimited e-books from digital library ...

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Top 8 Reasons Why You Need Online Help For Writing Assignments

Top 8 Reasons Why You Need Online Help For Writing Assignments

Writing is an art and it comes naturally to a person if he has a flair for it. Even such a person needs to gather good writing skills to excel in his write ups and jump unto the spotlight of fame. Students stacked with piles of writing assignments have no time to gather such skills or they may not be ...

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