The two devices in a computer that should be considered "black boxes," and should never be opened due to risks involving charged capacitors are MONITOR and POWER SUPPLY.

Explanation:

Physical contact or close proximity to the open power supply caused a discharge from the capacitor that resulted in an electric shock. Capacitors can discharge current even when not energized because they hold a charge for some time after the power is turned off.
To do harm to your body, the voltage across the capacitor's terminals must be high enough to cause a harmful effect on you. There are no hard rules for at what voltage things become harmful, but a common 'rule of thumb' is that DC up to 48 Volt is considered low voltage. So a capacitor charged to a voltage below 48 V is fairly safe.
A charged capacitor can be very dangerous, so it's important that you avoid coming into contact with the terminals at all times.

3 0

3 years ago

Let’s say you attach four images to accompany an important tweet that you’ve composed in the Hootsuite Compose Box. On Twitter,

Damm [24]

I doub between:

<span> C) A series of 4 full size, but individual tweets (with the tweet copy appearing above the first image of the series) D) A collage format, with full size images</span>

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4 years ago