The document discusses wireless charging technology for smartphones. It explains that wireless charging works through electromagnetic induction between coils in the charging base and in the phone. When the phone is placed on the charging base, an alternating magnetic field is created between the coils, which transfers power through resonance to charge the phone battery without needing a wired connection. While convenient, wireless charging is less efficient than wired quick charging and can cause more heat generation in the phone. It is seen as a good option for occasional or emergency charging when a wire is not available.

1. Presented by: Navpreet Kaur

2. Battery nervousness, we as a whole have it. The
steady dread that your cell phone is going to
come up short on juice, exactly when you
require it most, is for reasons unknown as well
as unpleasant. Entire subreddits are devoted to
screenshots where the telephone is going to
shut down.

3. It is just a charging
base that gets
connected to phone
directly but not the
wire. This makes the
battery getting
reload just by
putting it over the
base. It could be of
any size and shape.

4. There is a transmission of low power signals
through two resonant inductive couplings
within two devices. The energy gets transferred
without getting touched. There is a transmitter
coil on the base and a receiver coil on the
phone, through this the power gets supplied. A
signal out is sent by the base station and on
receiving by the receiver coil, their occurs
resonance.

5. A magnetic field is created between two devices
through electromagnetic coils. There is a timed
repetitive variation called Oscillation.
Using magnetic field, the battery gets charged.

6. It is beneficial to have a remote
charging base around your
work area at work. When
you're not utilizing your
telephone, you set it on the
charger. When you have to
utilize your telephone, lift it
up and it has a charge.
Remote charging isn't as
quick as Quick Charge, yet
it's simple and something
will probably use to keep
your telephone finished off
for the duration of the day
(in our illustration). That is
the place remote charging
sparkles — convenience.

7.  There are special electrical coils on charger as
well as on phone.
 On getting closed, a vibration is made in coils
using the magnetism.
 EMF gets created in the phone by the coils.
 The phone gets charged when power in small
amount is sent through EMF.

8.  It produces heat more.
 It costs more than other wire chargers.
 On using it, it is pretty good.

9. Overall to have this charger, there are some of the
benefits like it can be used while there is an
emergency. But on the other hand, it is having
less efficiency than the others chargers do have.

10. Retrieved from: https://www.inverse.com/article/25782-
inventions-in-2017
Retrieved from: https://www.androidcentral.com/wireless-
charging-plain-english
Retrieved from:
https://www.google.co.in/search?q=actual+wireless+smartphone
+charging&client