Unformatted text preview: Farms " ELECTRGHAGNEHE Hill-“E? * Iii “" Emails-Italic HhuePropggoﬂon [43?] Q [in a clear day, the solar power per unit area recein at the earth’s surface is approximately' iﬂﬂﬂ Win12. According to the expression below,
this power intensityr corresponds to an instantaneous net electric ﬁeld magnitude of approximately son NH: . P = power
2 A. = area
i = C EOE c = spooooflight
A Eu = penniuivity conslanl
a = asx 1o"i c‘mm‘
E = eloolric ﬁe1d magnitude
0 What is the approximate value of the in-
stantaneous net magnetic ﬁeld magnitude
. in the sun’s rays on the earth’s surface?
ii; a. 3.9x 10‘11T c. aox1o1’r b. 2.0Kiﬂ‘5T d. 1.3K1ﬂ”T ...
View Full Document
- Spring '11