Single-Phase Half-Wave Rectifier For each circuit shown below, derive the equations of I(t), VL(t) and Vc(t). For each circuit, at t = zero, switch SW1 is closed, with V(0) = zero and I(0) = zero. SW1 D1 SW1 D1 R1 L1 E L1 C1 E Figure 1 Figure 2 SW1 D1 SW1 R1 D1 R1 L1 E C1 C1 E Figure 3 Figure 4