An antena with P= 4.2×10³ W is radiating Sprierical electromagnetic waves. Consider Place which is d=z@om away from the antenna. a given: P= 4.2×10³ W d=280m I = P(umα²) (usaaz) a) Express I in terms of the electric field magnitude Emax, the speed of light C, and the permility of free space. 2 b) Find Emar² in terms or P,d, C, and No clisave the numerical varte of Emax in volts per meter.

An antena with P= 4.2×10³ W is radiating Sprierical electromagnetic waves. Consider Place which is d=z@om away from the antenna. a given: P= 4.2×10³ W d=280m I = P(umα²) (usaaz) a) Express I in terms of the electric field magnitude Emax, the speed of light C, and the permility of free space. 2 b) Find Emar² in terms or P,d, C, and No clisave the numerical varte of Emax in volts per meter.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 21CQ: What is wrong with the following expressions? How can you correct them? (a) C=AB , (b) C=AB , (c)...

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