Find the equivalent inductance. ○ Leq = [(L1||L2) + L3] ||L4 Leq = (L1 + L2)||(L3 + L4) ○ Leq = [(L1 + L2)||L3] + L4 ○ Leg = (L1||L4) + (L2||L3) ○ Leq = (L1||L2) + (L3||L4) ○ Leq = L1||L2||L3||L4 ○ Leq = L1 + L2 + L3 + L4 ○ Leq = (L1||L3) + (L2||L4) i(t) L₁ m m m L3 L2 LA m -Ob L₁ = 20mH L2 = 50mH L3 = 70mH L4 = 65mH i(t) = 30mA.e

a) With the aid of illustrations and using Silicon, describe what an intrinsic semiconductor material is. (b)  With the aid of illustrations and using Silicon, describe what an extrinsic N type            semiconductor material is. (c)  With the aid of illustrations and using Silicon, describe what an extrinsic P type         semiconductor material is. (d)  With the aid of illustrations, describe what happens when P and N materials are        joined/fused together and what is formed across the join. Then describe and        illustrate how the formation at the junction can be controlled. (e)   Give clear illustrations of characteristics for GERMANIUM and SILICON DIODES and          say what is the threshold value (Vt) for Silicon and Germanium.

A semiconductor is a crystalline material. Please choose one: a. have strong covalent bonds between neighboring atoms b. has many free electrons held by the attraction of positive ions c. with only one electron in its outer shell D. has a full valence shell