{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Practice HW 20 problem

# Practice HW 20 problem - song(shs546 Practice HW 20...

This preview shows pages 1–2. Sign up to view the full content.

song (shs546) – Practice HW 20 – weathers – (22202) 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 0.0points The electric field between the plates of an air capacitor of plate area 0 . 26 m 2 is changing at a rate of 45700 V / m / s. The permitivity of free space is 8 . 85419 × 10 - 12 C 2 / N / m 2 . What is Maxwell’s displacement current? Answer in units of A. 002 0.0points The electric field in an electromagnetic wave (in vacuum) is described by E = E max sin( k x - ω t ) , where E max = 58 N / C and k = 8 . 2 × 10 8 m - 1 . The speed of light is 2 . 99792 × 10 8 m / s. Find the amplitude of the corresponding magnetic wave. Answer in units of T. 003(part1of2)0.0points What is the wavelength corresponding to a frequency of 7 × 10 19 Hz of electromagnetic wave in free space? The speed of light is 2 . 99792 × 10 8 m / s. Answer in units of m. 004(part2of2)0.0points What is the wavelength corresponding to a frequency of 6 × 10 9 Hz?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}