Which of the following power sources are used to power a laptop?
A.
Solar panel
B.
AC power
C.
Battery
D.
Docking station
Explanation:
AC power and batteries are used to power a laptop. Lithium-ion batteries are used to power laptops.
The lithium battery has a long life.
Answer options A and D are incorrect. Solar panel and docking station are not used to power a
laptop.
Solar panels are devices that convert energy from the sun light. Currently, there is no popular brand
that uses solar cell to power a laptop.
A docking station is a hardware device that contains slots for expansion cards and storage devices,
and ports for peripheral devices such as printers and monitors. It allows laptops to connect to
printers, storage devices, and other devices that are not usually available with laptops.
A docking station also includes a network interface card that connects a laptop to the network and
enables users to use a full-size keyboard when they are not traveling.
Reference:
“http://en.wikipedia.org/wiki/Lithium_ion_battery”