Skip to main content

5 Ways How Artificial Intelligence Will Impact Our Future

Post a Comment

What are the Common Misconceptions About Electricity

 Electricity is a very common term in our daily life. Our regular activities largely depend on electricity. As we are dependent on technology it's a must to have electricity in the first place. Home, schools, factories all depend on electricity. In summer it's impossible to stay without electricity. but regarding this common term, we all have some misconceptions. From the general people to engineering students a huge portion of people holds these misconceptions. Today I will discuss some common misconceptions about electricity and its solution. So let's check it out.



1. High resistance bulbs are brighter than low resistance bulbs

Some think that the more resistance a bulb has the more it will transfer the energy. But it is a full misconception. This thinking comes from, resistance which is an obstacle for current to flow, so the more current tries to get through, the more electricity passes through the wire. but the resistance has nothing to do about the brightness of a bulb. If the resistance is thee maybe less electricity but the brightness will be always the same. And if the resistance is too high the current flow will be zero and no energy will be transferred. 

2. Charges move very quickly through empty wires.

People think that in empty wires there is no resistance to the current flow will be very easy and quick. But in wires, there are already full of free electrons and they move very slow and at the same time. The wires have resistance where the electrons speed up. In the flow the faster moving electrons meet with lattice and energy can be transferred through resistance in the wire. 

3. The current takes the easiest path

This topic is discussed in the short and parallel circuits where there is different resistance. It is a very common misconception among people. It is not the current who changes roue. If the circuit is changed the current flow will automatically be changed according to the circuit. If the circuit is changed then the current is changed.

4. Electric shocks are common to mammals 

We always see that birds are not electrified when they sit on electric wire. So the thinking automatically comes that electric shocks are only applicable for mammals. But it is not completely true. If an animal can complete a circuit then the electricity will flow in them and they will get an electric shock. 

5. When the switch is off there is no electricity

This is a very common misconception. After we turn off the switch there is still electric energy. That's why we see light for a few seconds in the bulb after turning off the switch. Because for a few moments the energy can be stored. 


To know more 

Common Misconceptions about Electricity

Reference: https://en.wikipedia.org/wiki/Electricity 




Comments

Post a Comment

Popular posts from this blog

What Does It Mean By Dny11 in Transformer?

We often see transformers in our way almost every day, everywhere. We all might have noticed that there is something written in the transformer like Dny11. But we don't know what does it mean? We can guess that the numbers on the transformer windings show the turns ratio between windings. But by reading this article we might confirm this guess.  The first letter D shows that the primary winding configuration is in delta connection. The second small letter n shows that it has the neutral point and the small y shows that it is star connected. Letter 11 shows the phase difference between the primary and secondary connection according to clock configuration. When the clock hands are between 11 and 12 the angle between them is 30 degrees. So, Dny11 means  D- Primary winding in delta connection ny-Secondary winding in star connection with a neutral point 11- There is a phase angle difference of 30 degrees between the primary and secondary line voltages. The secondary line voltage lags by
Post a Comment
Read more

Why Stones Used in Substation?

The substation is combined with many electrical devices like transformers, isolators, electric lines, etc. Electrical devices are sensitive and have to protect carefully. Usually, the protector of the substation is stone. Isn't it surprising? Have you thought it should be more advanced? In the world of technology why stone is used as a protector? You will be surprised to know the fact that stone is the perfect natural protector. Today I will explain this topic to you. The most important part is the ground potential rise (GPR)  The maximum electrical potential that a substation grounding grid may attain relative to a distant grounding point assumed to be at the potential of remote earth. This voltage GPR is equal to the maximum greed current times the grid resistance. Step voltage: It is defined as the maximum potential difference that exists between the feet when a fault current flows in the body. A particular case of step voltage is the transferred voltage where a voltage is trans
Post a Comment
Read more

Is the Flow of Electrons and Current Opposite to Each Other?

 The direction of current flow and electrons has been a very common question. It is the most common but most asked question as well. Many have confusions about the answer, we all know that current is the flow of electrons. So why it always have to be the opposite? Why their direction would be different? Today I will try to get you rid out of this confusion.  First of all, we need to know what is current? An electric current is a stream of charged particles, such as electrons and ions, moving through an electrical circuit or space. It is the flow of a positive electric charge. The strength of current flow in any medium depends on the difference of voltage in that medium. It is measured as the total rate of flow of electric charge through a surface or into a control volume.  And electron flow is what actually happens and electrons flow out of the negative terminal, through the circuit, and into the positive terminal of the source. It won't make any difference as long as the current i
Post a Comment
Read more