Final answer:
The wavelength (λ) of a signal where a 5 m transmission line has an electrical length of 1.5 λ is calculated to be 3.33 m.
Step-by-step explanation:
The question asks to determine the value of λ when the electrical length of a 5 m transmission line is 1.5 λ under sinusoidal excitation. The electrical length is a measure that relates the physical length of a transmission line to the wavelength of the signal it carries.
To find the value of λ, we use the given information that the electrical length (1.5 λ) is equal to the physical length of the transmission line (5 m). Therefore, we can set up the equation 1.5 λ = 5 m. Solving for λ, we get λ = 5 m / 1.5, which gives us λ = 3.33 m.