The main differences between emitter and collector are doping concentration and size. The emitter is heavily doped, while the collector is lightly doped. You could try to swap them, but you'll get a very low \$H_{FE}\$, probably even less than 1.
Image Credit: Photo: Oxmoor House. SEASON: Although available year-round, eggplant is at its peak from July to October. CHOOSING: When selecting, look for eggplants with firm, glossy skin. Size and color vary widely among types, but the eggplant should feel heavy. Avoid those with wrinkled skin, soft spots, or brown patches.
As a member of the Solanaceae family, the eggplant is a type of plant known as a nightshade. Itâs thus closely related to tomatoes and potatoes. Eggplants grow wild, but theyâre also cultivated as an annual crop in areas with a temperate climate. Eggplant is known for its fleshy, meaty texture.