Chapter 23 Transients

23.1 Rate of change

Change, or more specifically rate of change is important in many electrical and electronic applications and so it’s important to explain just what we mean by this. In Chapter 21 we defined electric current as the rate of flow of electric charge. For the steady-state condition (where charge is being transferred at a uniform rate) we stated that:

where I represents current, Q represents charge and t represents time.

A more meaningful definition covering all eventualities would be have been to say that: ...

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