1. Sketch the atomic structure of copper and discuss why it is a good conductor and how its structure is different from that of germanium, silicon, and gallium arsenide. 2. Describe the difference between n-type and p-type semiconductor materials. 3. Determine the static or de resistance of the commercially available diode of Fig. 1.15 at a forward current of 4 mA. Revanse-hias region, (V₂0V, 0 mA) FIG. 1.15 Silicon semiconductor diode characteristics

1. Sketch the atomic structure of copper and discuss why it is a good conductor and how its structure is different from that of germanium, silicon, and gallium arsenide. 2. Describe the difference between n-type and p-type semiconductor materials. 3. Determine the static or de resistance of the commercially available diode of Fig. 1.15 at a forward current of 4 mA. Revanse-hias region, (V₂0V, 0 mA) FIG. 1.15 Silicon semiconductor diode characteristics