V-I Characteristics of Gunn Diode.
                    GaAs is used in the fabrication of GUNN diodes because:
                  
                  
                  
                    In the V-I characteristic curve, what does the point of maximum current represent?
                  
                  
                  
                    The mode of operation in which the Gunn diode is not stable is:
                  
                  
                  
                    The negative resistance in Gunn diode is due to
                  
                  
                  
                    In Gunn diode oscillator, the Gunn diode is inserted into a waveguide cavity formed by a short circuit termination at one end
                  
                  
                  