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Sagot :
The magnitude of the electric field is 379.4 N/C
The magnitude of the electric field,
I = P/A
Ie = 1/2 εoc[tex]E^{2}[/tex]
Ie = 1/2 I = 1/2 × 382.165
Ie = 191.8 w/m²
191.8 = 1/2 × 8.85 × [tex]10^{-12}[/tex] × 3 × [tex]10^{8}[/tex] × [tex]E^{2}[/tex]
E = 379.4 N/C
An electric field, often known as an E-field[1], is a physical field that surrounds electrically charged particles and acts as an attractor or repellent to any other charged particles in the vicinity. [2] A system of charged particles' physical field is also referred to in this phrase. [3] Charges and time-varying currents in electric systems give rise to electric fields. A manifestation of the electromagnetic field, one of the four fundamental interactions (sometimes known as forces) of nature, is electromagnetic fields, which also include electric and magnetic fields.
Many branches of physics place a premium on electric fields, which are also used to great effect in modern electrical engineering. The attractive force holding the atomic nucleus and electrons together in an atom, for example, is the electric field in atomic physics and chemistry. The force that causes atoms to connect chemically is another function of it.
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