Question

which of the following devices can store large amounts of electricity, even when unplugged?
○ crt monitor
○ hard disk drive
○ lcd monitor
○ dvd optical drive

Explanation:

A CRT (Cathode - Ray Tube) monitor has a high - voltage capacitor inside it. Capacitors are components that can store electrical charge (and thus electricity). Even when the CRT monitor is unplugged, the capacitor can still hold a large amount of electrical charge for some time. Hard disk drives, LCD monitors, and DVD optical drives do not have components that store large amounts of electricity in the same way as a CRT monitor's capacitor when unplugged.

Answer:

A. CRT monitor