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Unformatted text preview: i(t) . Fig. 1-7: Determining i(t) from q(t). Ex: The current in a wire is given by i(t) = 1 mA cos(2 p 100 t). Determine the net charge that has passed a particular point in this wire q(t) from t = 0 to t for the interval 0 < t < 30 ms. Ex: The charge q(t) on a body is given as a function of time in the plot below. (a) Determine the current i(t) flowing onto the body. (b) How many excess electrons are present on the body initially?...
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- Spring '08
- Electric charge, Fig., net charge, Static charge demonstration, Current direction notation