Design an interface circuit so that an input voltage

Question

1. Design an interface circuit so that an input voltage v_S (t) = 100 cos(2 × 10⁴t) V delivers a steady-state output current of i_O(t) = 10 cos (2 × 10⁴ t -60°) mA to a 1-kΩ resistive load. Validate your answer using Multisim.

2. Design an interface circuit so that an input voltage v_S(t) = 15 cos(100 kt) V delivers a steady-state output voltage of v_O (t) = 10 cos (100 kt - 45°) V.