Square law modulators
a.) Have non linear current-voltage characteristics
b.) Are used for Amplitude Modulation
c.) Are used for frequency modulation
d.) Both a) and b) are correct
Correct Answer: d) Both a) and b) are correct
Explanation:
Square law modulators are used for Amplitude Modulation. They have non linear current-voltage characteristics. Square law modulators are highly nonlinear in low voltage region.
