Sanders asked in Science & MathematicsPhysics · 4 months ago

# Can a electromagnetic pulse be blocked by another E.M.P.?

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• 3 months ago

Just as Tom said you can cancel a waveform with an inverted phase waveform. This is how noise cancelling headphones work.

As a practical matter with an EMP it isn't realistic to do that.

• Tom
Lv 7
4 months ago

In theory if you can produce an IDENTICAL waveform 180 degrees out of phase at the right place.---Good luck.

• 4 months ago

No.  JUst as you can shine two torch beams through each other ( electromagnetic wave) so too other electromagnetic waves pass through each other.  At places where they intersect there can be nodes and maxima.  Which means that the maxima would be GREATER ( 4 times as great) than if you had a single pulse alone. ( the nodes have zero energy and the total energy must average to the sum of the two original pulses )

• 4 months ago

Yes, if one EMP were to encounter another EMP with the same polarity and a phase shift of 180 degrees they would probably cancel.

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• Anonymous
4 months ago

No.

EMP travel at the speed of light. If you'd want to negate one, you would need a perfectly timed one to arrive at the same spot *everywhere*, with the same intensity but half a wavelength off. And the only way to achieve that would be for the cancelling pulse to come from the same source.

You'd have a better time trying to make a room dark by having a lamp to cancel the light of another lamp.

• 4 months ago

are you saying with resonation?

• Anonymous
4 months ago

No, your electronics are still going to be toast.

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