i. A traveling electromagnetic wave in a vacuum has an rms electric field amplitude of 59.7 V/m. Calculate the intensity S of this wave. (a) 0 W/m² (b) 3.15 W/m² (c) 9.45 W/m² (d) 18.9 W/m² (e) None of the above. ii. A circular, parallel plate capacitor in a DC RC circuit is charging. What is the direction of the Poynting vector between the capacitor plates?

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter34: Electromagnetic Waves
Section: Chapter Questions
Problem 34.11OQ
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  1. i. A traveling electromagnetic wave in a vacuum has an rms electric field amplitude of 59.7 V/m.

    Calculate the intensity S of this wave.

    (a) 0 W/m2 (b) 3.15 W/m2 (c) 9.45 W/m2 (d) 18.9 W/m2

    (e) None of the above.

    ii. A circular, parallel plate capacitor in a DC RC circuit is charging. What is the direction of the Poynting vector between the capacitor plates?

i. A traveling electromagnetic wave in a vacuum has an rms electric field amplitude of 59.7 V/m.
Calculate the intensity S of this wave.
(a) 0 W/m²
(b) 3.15 W/m²
(c) 9.45 W/m²
(d) 18.9 W/m²
(e) None of the above.
ii. A circular, parallel plate capacitor in a DC RC circuit is charging. What is the direction of the
Poynting vector between the capacitor plates?
I(t)
00
I(t)
Transcribed Image Text:i. A traveling electromagnetic wave in a vacuum has an rms electric field amplitude of 59.7 V/m. Calculate the intensity S of this wave. (a) 0 W/m² (b) 3.15 W/m² (c) 9.45 W/m² (d) 18.9 W/m² (e) None of the above. ii. A circular, parallel plate capacitor in a DC RC circuit is charging. What is the direction of the Poynting vector between the capacitor plates? I(t) 00 I(t)
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