We will be using a "voltage" (electric potential difference) probe to measure the electric field in this lab. Although you may not have discussed electric potential yet in the lecture portion of the class, the component of the electric field along a particular direction (n) is given by the derivative of (or change in) the potential (n) with respect to the position, i.e., (n), along that direction. If the electric field (n) is relatively constant over some small displacement (n), then, the magnitude of the component of the electric field along the (n) direction in terms of the potential difference (or "voltage") (n) (which you will measure with the multimeter) over this displacement (n) is given by _____.
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