Question

The power radiated by sun is 3.810 W and its radius is 710 km. The magnitude of the Poynting vector (in W/cm 2) at the surface of the sun is

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

The power radiated by sun is 3.810 W and its radius is 710 km. The magnitude of the Poynting vector (in W/cm 2) at the surface of the sun is ?

Answer 8

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Answer 9

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Answer 10

The magnitude of the time-averaged Poynting vector is related to the amplitude of the electric field by
S = c 1 ε E 2 . 20 y,0
So  2(1.35×103 W⋅m−2) 3 −1 Ey,0 = cε = (3.0×108 m⋅s−1)(8.85×10−12 C2 ⋅N−1 ⋅m−2) =1.01×10 V⋅m .
0
The amplitude of the magnetic field is
B = E0 =1.01×103V⋅m−1 =3.4×10−6T.
0 c 3.0×108 m⋅s-1

Answer 11

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Answer 12

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Answer 13

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