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a b с The total power radiated by the Sun in the form of electromagnetic waves has the value 3.8 x 1026 Watt. The radius of the Sun is 7 x 10⁰ meter. What is the magnitude of the electric field E at the surface of the Sun ? (Assume that the radiation consists of monochromatic plane waves. You will need the value of the intrinsic impedance of vacuum; this is no = 377 9.) The (average) distance between Sun and Earth is 1.5 × 10¹¹ meter. What are the power density and the magnitude of the Sun's electric field E at the surface of the Earth? (Neglect any possible absorption in the atmosphere etc.) What is the area, on Earth's surface, that is needed to produce 1 Megawatt of electric power from solar energy, assuming an average efficiency of 4% ?

a b с The total power radiated by the Sun in the form of electromagnetic waves has the value 3.8 x 1026 Watt. The radius of the Sun is 7 x 10⁰ meter. What is the magnitude of the electric field E at the surface of the Sun ? (Assume that the radiation consists of monochromatic plane waves. You will need the value of the intrinsic impedance of vacuum; this is no = 377 9.) The (average) distance between Sun and Earth is 1.5 × 10¹¹ meter. What are the power density and the magnitude of the Sun's electric field E at the surface of the Earth? (Neglect any possible absorption in the atmosphere etc.) What is the area, on Earth's surface, that is needed to produce 1 Megawatt of electric power from solar energy, assuming an average efficiency of 4% ?

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a b с The total power radiated by the Sun in the form of electromagnetic waves has the value 3.8 × 1026 Watt. The radius of the Sun is 7 × 108 meter. What is the magnitude of the electric field at the surface of the Sun? (Assume that the radiation consists of monochromatic plane waves. You will need the value of the intrinsic impedance of vacuum; this is no=3772.) The (average) distance between Sun and Earth is 1.5 × 10¹¹ meter. What are the power density and the magnitude of the Sun's electric field E at the surface of the Earth? (Neglect any possible absorption in the atmosphere etc.) What is the area, on Earth's surface, that is needed to produce 1 Megawatt of electric power from solar energy, assuming an average efficiency of 4% ?
Transcribed Image Text:a b с The total power radiated by the Sun in the form of electromagnetic waves has the value 3.8 × 1026 Watt. The radius of the Sun is 7 × 108 meter. What is the magnitude of the electric field at the surface of the Sun? (Assume that the radiation consists of monochromatic plane waves. You will need the value of the intrinsic impedance of vacuum; this is no=3772.) The (average) distance between Sun and Earth is 1.5 × 10¹¹ meter. What are the power density and the magnitude of the Sun's electric field E at the surface of the Earth? (Neglect any possible absorption in the atmosphere etc.) What is the area, on Earth's surface, that is needed to produce 1 Megawatt of electric power from solar energy, assuming an average efficiency of 4% ?
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