Topic: Electromagnetics
The cut off frequency of TEM wave is
- A. Infinite
- B. DC
- C. 2c/λ
- D. None of the above
Answer: B. DC
Explanation: The Transverse Electromagnetic (TEM) mode does not have a cutoff frequency, meaning its cutoff frequency is 0 Hz, which corresponds to DC (Direct Current). It can propagate signals at any frequency from DC upwards.