Which of the following would be a use of a variable attenuator at microwave frequencies?
A)To prevent reflections
B)To change the physical direction of propagation
C)To measure signal levels
D)To change the plane of polarization of the wave

Question

Quizplus · Accepted Answer

Variable attenuators are used to measure signal levels at microwave frequencies. It helps in controlling the amplitude of the signal passing through it. The other options (A, B, and D) are not related to the function of variable attenuators.

Which of the Following Would Be a Use of a Variable