Advertisements
Advertisements
Question
Define frequency modulation and state any one advantage of frequency modulation (FM) over amplitude modulation (AM).
Solution
When the frequency of carrier wave is varies in accordance with the information signal, the corresponding modulation is called frequency modulation.
The advantages of frequency modulation (FM) over amplitude modulation (AM) is that FM is less prone to interference than AM.
APPEARS IN
RELATED QUESTIONS
How are em waves produced by oscillating charges?
Suppose that the electric field amplitude of an electromagnetic wave is E0 = 120 N/C and that its frequency is v = 50.0 MHz.
- Determine B0, ω, k, and λ.
- Find expressions for E and B.
A wire carries an alternating current i = i0 sin ωt. Is there an electric field in the vicinity of the wire?
The dimension of `1/(mu_0 ∈_0)` is
Discuss the Hertz experiment.
Write down the properties of electromagnetic waves.
Radio waves for FM radio have a frequency about ______.
Dimensions of ε0 `(d phi_ε)/(dt)` are of
A linearly polarized electromagnetic wave given as E = Eoî cos (kz – ωt) is incident normally on a perfectly reflecting infinite wall at z = a. Assuming that the material of the wall is optically inactive, the reflected wave will be given as ______.
A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric field is 6 V/m. The magnetic field at this point will be x × 10-8 T. The value of x is ______.