Figure 4.16. In this diagram is a long thin rectangle and a smaller one inside the larger one. The smaller one is at the bottom and centered left to right. It is approximately one third the width of the larger one and one half the height. Inside the smaller rectangle are a few circles that indicate holes. They are along the bottom near the connection point, none of them are near the boundary between the inner and outer rectangle. Outside the smaller rectangle but inside the larger one are rows and columns of dots indicating electrons. None of them are near the boundary between the inner and outer rectangle. There is a connection on the left end of the larger rectangle labeled source. There is a connection to the bottom center, to the inner rectangle, that is labeled gate. There is a connection to the right end of the larger rectangle labeled drain. The positive end of a battery connects to the source and the negative end connects to the gate. There is no connection to the drain. End verbal description.
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