Register to reply

Threat of an EMP?

by yoyopizza
Tags: electromagnetic, emp, fariday cage, nuke, pulse
Share this thread:
yoyopizza
#1
Dec28-12, 06:29 PM
P: 35
So I watched a video recently on YouTube about how one well placed EMP above the United States would wipe out all electronics and military equipment, but doesn't the government have precautions against this such as the Fariday Cage? Also, since the desktop computer is incased in metal, wouldn't it act as a Fariday Cage by itself and protect the computer from the emp?
Phys.Org News Partner Physics news on Phys.org
Step lightly: All-optical transistor triggered by single photon promises advances in quantum applications
The unifying framework of symmetry reveals properties of a broad range of physical systems
What time is it in the universe?
phinds
#2
Dec28-12, 06:56 PM
PF Gold
phinds's Avatar
P: 6,350
Well, if you have everything enclosed in a Faraday cage and run on batteries inside the cage, you are OK.

But now let's look at the real world. What do you reckon will happen when a power cord going from the local step-down transformer sends not the standard 120 volts into the equipment inside the cage but rather sends a couple of thousand volts?

How about when that step-down transformer that normally has a few thousand volts as input is subjected to a few tens of thousands of volts?
berkeman
#3
Dec28-12, 06:59 PM
Mentor
berkeman's Avatar
P: 41,107
Quote Quote by yoyopizza View Post
So I watched a video recently on YouTube about how one well placed EMP above the United States would wipe out all electronics and military equipment, but doesn't the government have precautions against this such as the Fariday Cage? Also, since the desktop computer is incased in metal, wouldn't it act as a Fariday Cage by itself and protect the computer from the emp?
Welcome to the PF.

We do not normally allow discussions about EMP here at the PF. Sorry, but this thread is closed.


Register to reply

Related Discussions
Is the swine flu a threat? Biology 242
Homework Threat Introductory Physics Homework 0
How much of a threat are dioxins? Biology 15