2 years ago

Does the earth have an electric field

Physics

1 answer:

k0ka [10]2 years ago

4 0

Answer:

Yes,earth has an electric field

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A 15-turn circular wire loop with a radius of 3.0 cm is initially in a uniform magnetic field with a strength of 0.5 T. The fiel

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To solve this problem it is necessary to apply the definition given in Faraday's law in a solenoid for which it is noted that

$\epsilon = - d\frac{\phi_B}{dt}$

$\epsilon = -NA\frac{dB}{dt}$

Where,

N = Number of loops

A = Cross sectional Area

B = Magnetic Field

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Answer:

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(b) 1015.22 μJ/m^3

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Electric field, E = 119 V/m

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(a) Energy density of electric field = $\frac{1}{2}\varepsilon _{0}E^{2}$

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(b) energy density of magnetic field = $\frac{B^{2}}{2\mu _{0}}$

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= 1.01522 x 10^-3 J/m^3 = 1015.22 μJ/m^3

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