With a cell phone, why the charger rate different?
-Mobile phone charger-IT news With a cell phone, why the charger rate different?

Whether you use Android, iOS mobile is Windows Phone mobile phone, there is one thing that holds us together, which is a cell phone charger. Sometimes we find some charger charging speed is faster than other chargers (with a cell phone case), why not, this may involve electricity and AC/DC.

A AC AC is usually an inner, cell phones and other electronic devices use direct current DC, so we have to charge phones or Tablet needs to convert AC power to DC power. Convert between AC and DC current is in the charger.

Ohm's law had learnt some interrelationship between amps, voltage and ohms. Today all of our phone is charging through the USB port, USB charging uses 5V DC, why do some Chargers will be faster than others?

That matter for two variables, one is resistance, the other is a current. Typically, resistance is not a big problem, unless you buy Thailand cheap Chargers and charging cable, one damaged, or connector come loose (in this case, the resistance will increase), resulting in less charger output current amps.

Less current, charge more slowly. Current the more you charge more quickly. Need to be aware of is that charge mobile devices usually have set power rating, the decision to import more current can cause damage to electronic equipment.