Write true (T) or false (F) for each of the following statements.
(a) All r- and x-circles pass through point (Γ_r , Γ_i) = (1, 0).
(b) Any impedance repeats itself every λ/4 on the Smith chart.
(c) An s = 2 circle is the same as ІΓІ = 0.5 circle on the Smith chart.

(d) The basic principle of any matching scheme is to eliminate the reflected wave between the source and the matching device.
(e) The slotted line is used to determine Z_L only.
(f) At any point on a transmission line, the current reflection coefficient is the reciprocal of the voltage reflection coefficient at that point.