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3 years ago

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"What is the energy density (energy per cubic meter) carried by the magnetic field vector in a small region of space in a EM wav

e at an instant of time when the electric vector is a maximum of 3500V/m

1 answer:

Pachacha [2.7K]3 years ago

6 0

Answer:

The energy density is $Z = 5.4 2 *10^{-5 } \ J/m^3$

Explanation:

From the question we are told that

The electric vector is $E = 3500 \ V/m$

Generally the energy vector is mathematically represented as

$Z = 0.5 * \epsilon_o * E^2$

Where $\epsilon_o$ is the permitivity of free space with the value $\epsilon_o = 8.85*10^{-12} \ \ m^{-3} \cdot kg^{-1}\cdot s^4 \cdot A^2$

substituting values

$Z = 0.5 * 8.85 *10^{-12} * 3500^2$

$Z = 5.4 2 *10^{-5 } \ J/m^3$

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Complete Question

The complete question is shown on the first uploaded image

Answer:

a

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b

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