Jazzman01:


Using the resistivity equation, we can see that the longer the length, the higher the resistance and this will lead to I²R losses. But this is usually countered by increasing the cross-sectional area of the wire. This is done by increasing the number of strands of wire or increasing the thickness of the wire.

Theoretically, length has an effect but when we want to design it for practical purpose, we counter that effect by increasing the thickness of the wire or using multiple strands. So when next you are purchasing a charging cable, you don't have to worry about the length affecting the charging speed because it has been taken care of.

Theoretically, Resistance is also inversely proportional to the cross sectional area of the cable, u are right though, just wanted to point out that the area still affects the resistance in theory.

MaDaRa01:

is this theory applicable to transmission of electricity from the power station?

NO.
High Voltage is what is used and permanently needed in power transmission from the production point as there is more to the transmission than ordinary production or generation by the Big Gas or water driven Alternators made of PURE COPER WIRES.

Transferring Low Voltage High current is extremely less effective than High Voltage Low Current because The AIR is what will do the work. The Air you breath in and out contains more than the life sustaining gasses. It actually contains Charged Electrical Particles which Propels or Provides Voltage that your small 950W or or 0.95KW alternators and above generates.

Simply put, the Air Is the Voltage while the Earth ground is the Current

If the cord is tiny it will charge fast, than when the cord is fat , but I do change the capacitor of my charger from 6.5uf to 10uf .to make it charge 5times faster

These are the factors that affect the movement of electrons(the speed) in a conductors.
1. The length of the conductor.
2. The area of the conductor.
3. The nature of the materials used to produce the conductor.
4. Temperature.
explanation!
1. The longer the wire, the slower the movement of current and vice verza.
2. The ticker the wire the faster the current and the thiner the wire the slower the current.
3. Silver is the best conductor follow by copper then aluminium. So a charger made of silver wire will be faster than that of copper wire.
4. The lower the temp, the faster the current, while the charger that becomes hot easily will slow down the current.
in summary, 1. a thick and short charger will be faster than a long and thin charger.
2. A long and thick charger will be faster than a long and thin charger.
the other two factors should also be put into consideration.

gambojimeta:

Yes. Same idea.

voltage regulators (similar to your household voltage stabilizers) are placed along transmission and distribution lines to counter the effect of line loss.

Transmission and distribution is done at high voltage and low current to minimize effect of line loss.

See voltage regulators on a multi phase line below.

So you can type normally? What a twist!

Don't tell me you also have a STEM background or something.

LollySeaSide:

Increasing the length of a conductor does not increase the resistivity of the wire.
Resistivity of a wire depends on the material from which the wire was made and it's an intrinsic property that does not depend on length or cross-sectional area.
Same goes for conductivity.
When describing properties that depend on length, area of cross-section and temperature, it's more appropriate to use "resistance" and "conductance" instead of resistivity and conductivity.

Go read your physics bro

The resistance of a conductor is directly proportional to its length

There are factors that influences resistivity and conductivity of a wire
1. Length
2. Temperature
3. Cross sectional area
And the nature of the Material

The capacitor used determine to a large extent d quality of charge produce as well as the material used in making the wire...

Flamethehussler:

Go read your physics bro

The resistance of a conductor is directly proportional to its length

There are factors that influences resistivity and conductivity of a wire
1. Length
2. Temperature
3. Cross sectional area
And the nature of the Material

I'm sure you only hear of physics in the news.
I made it crystal clear that there's a difference between resistance and resistivity of a material.
While resistance depends on length, area of cross-section and temperature, the resistivity of a material is a constant and does not depend on any of those factors.
The resistivity of copper, for instance, is 1.72E-8 Ωm. It doesn't matter whether it's a 1m long copper or 500m long copper wire.
It's either you didn't look at what you typed before I commented or you knew what you typed but couldn't figure out what I explained.
Even a toddler would've understood that but then, some people are just too dumb for certain things.
I sincerely hope you aren't one of them.

Yes!
Consider the electrons in the cable as athletes, and the length of the cable as an athletic track.
The longer the track, the less efficient the athlete.
Do you think an athlete efficient for 100m track will maintain the same efficiency for a cross country?

Faster Charge speed is now Possible with Oraimo AniFast which is available in power banks, cable kits and chargers.

The resistance of the materials used in the charging cable does. Copper is the best but hardly used. Aluminum is commonly used but it deteriorates over time and also gets hot during prolonged use

If u dey Abuja and u won go Lagos and your friend too dey Abuja and he won go Lokoja, who go first reach him destination?

Okk

Resistance, Resistivity, Length and Cross-sectional Area. Basic physics.

Yes offcourse. Imagine making a step down transformer by just have wires go through millions of miles round the core because the more the length the higher it's resistance.

https://www.youtube.com/watch?v=drRV3O4TQQU

For your architectural designs and construction works, send us a direct message: https:///message/KLDFNMZR3KZTI1

Please i need a friendly advice or idea, remember that nobody is a reservoir of knowledge, we learn everyday.

My fone has a fast charging capacity which if i use normal charger it will show one thunder ⚡ sign and charge

If i use fast charger it will show 2 thunder sign to indicate fast charging capacity.

Fast charging will take just 1hr 30mins and charge from 0-100%

Recently i started feeling scared dat de amount of current flowing in might be affecting the ba3 strength and life cycle, yet i convinced myself that the fone was designed to be fast charging which means it sometin else dat might be weakening the ba3

Please am asking Does fast charging have a concrete effect on battery strength and weakness

Please no offense

Samfilo31:
Please i need a friendly advice or idea, remember that nobody is a reservoir of knowledge, we learn everyday.

My fone has a fast charging capacity which if i use normal charger it will show one thunder ⚡ sign and charge

If i use fast charger it will show 2 thunder sign to indicate fast charging capacity.

Fast charging will take just 1hr 30mins and charge from 0-100%

Recently i started feeling scared dat de amount of current flowing in might be affecting the ba3 strength and life cycle, yet i convinced myself that the fone was designed to be fast charging which means it sometin else dat might be weakening the ba3

Please am asking Does fast charging have a concrete effect on battery strength and weakness

Please no offense

The battery in mobile phones is lithium. Lithium inherently can take as much as 5c charging rate, though not always advisable. The rate for many battery types including lead acid (car battery) is 1c. So if lithium can naturally take 5c rate, that is way more than your fast charging capacity of the phone which is likely 2c or 3c.

Battery Electric Vehicles too have fast charging option.

Thanks for responding

ceaser:


The battery in mobile phones is lithium. Lithium inherently can take as much as 5c charging rate, though not always advisable. The rate for many battery types including lead acid (car battery) is 1c. So if lithium can naturally take 5c rate, that is way more than your fast charging capacity of the phone which is likely 2c or 3c.

Battery Electric Vehicles too have fast charging option.

to be honest, i don't still understand cos u haven't explicitly declared your point, i need straight forward answer

Samfilo31:
Thanks for responding to be honest, i don't still understand cos u haven't explicitly declared your point, i need straight forward answer

What I mean is that lithium which is the battery type used in phones, yours included, are naturally able to tolerate rapid charging.

So the fast charging feature of your phone will not damage the battery inside (weaken it or reduce the life cycle) more especially that it is a feature that the phone is designed with. The manufacturer knows quite well that fast charging on their phones should not have deleterious effect on the batteries in their phones.

---

Phone batteries usually swell in some instance though. This makes the phone to buckle either at the screen side or the back. This is sometimes as a result of overcharging long after the battery is full (such as occurs when the cell phone is left plugged overnight). So a way to avoid this problem is to use premium chargers that automatically throttle down charge current once it senses that the phone is full or you yourself unplug the phone once it is full.

Note that the batteries in phones are connected with complex circuitry called BMS (Battery Management System) that prevents the above problem from happening but that swelling still happens in some phones for reasons I'm yet to figure out. Pick an old Nokia phone battery and pry open the plastic at the top flexible area, you will see the mini circuit I'm referring to.

Two Nokia android phones and also a xiaomi phone have done that in my hands. All these phones do not have fast charging feature in them and at least Nokia is premium enough even if Xiaomi is claimed not to be premium. However the Samsung I use now has not shown that problem in almost a year. I also rarely here of that problem with iPhones.