Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
What is the equation of a plane progressive electromagnetic wave?
What is the equation of a plane progressive electromagnetic wave?
- $E_n = E_0 \cos (ckz - \omega t)$, $B_y = B_0 \cos (ckz - \omega t)$
- $E_n = -E_0 \sin (ckz - \omega t)$, $B_y = B_0 \sin (ckz - \omega t)$ (correct)
- $E_n = -E_0 \cos (ckz + \omega t)$, $B_y = -B_0 \cos (ckz + \omega t)$
- $E_n = E_0 \sin (ckz + \omega t)$, $B_y = B_0 \sin (ckz + \omega t)$
What is the frequency range for TV waves as mentioned in the text?
What is the frequency range for TV waves as mentioned in the text?
- 30MHz to 300MHz
- 900kHz to 1800kHz
- 530kHz to 1710kHz
- 54MHz to 890MHz (correct)
What type of modulation uses radio waves in the range from 530kHz to 1710kHz?
What type of modulation uses radio waves in the range from 530kHz to 1710kHz?
- Amplitude Modulation (AM) (correct)
- $QAM$ Modulation
- Phase Modulation (PM)
- Frequency Modulation (FM)
What is the relationship between the frequency of an electromagnetic wave and the frequency of oscillation of charge?
What is the relationship between the frequency of an electromagnetic wave and the frequency of oscillation of charge?
Signup and view all the answers
What is the speed at which electromagnetic waves propagate through space, according to the text?
What is the speed at which electromagnetic waves propagate through space, according to the text?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Electromagnetic Waves
- The equation of a plane progressive electromagnetic wave is E(x, t) = E0sin(kx - ωt), where E0 is the amplitude, k is the wave number, and ω is the angular frequency.
Frequency Range of TV Waves
- The frequency range for TV waves is from 50MHz to 220MHz.
Modulation
- Amplitude Modulation (AM) uses radio waves in the range from 530kHz to 1710kHz.
Frequency and Oscillation of Charge
- The frequency of an electromagnetic wave is equal to the frequency of oscillation of charge.
Speed of Electromagnetic Waves
- Electromagnetic waves propagate through space at a speed of 3.0 x 10^8 m/s, which is the speed of light.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
