![]() Please leave a comment below if you have any questions. May I recommend you print this note and check things off as you have master the topics. Know that it will take some time for the material to sink in. As the inductor is "turned off" it will act as a constant current source and do whatever is necessary to maintain the same current before and after the transition.Ĥ) Please search "transistor characteristic curves." Here you will find that a transistor appears to operate as an acceptable constant current source. Such a device would demand infinite current (again, not possible in this universe).ģ) Please search "inductor kickback." Here you will find than an inductor acts as a constant current source for a limited amount of time. ![]() Note that there is no such thing as a perfect constant voltage source. ![]() To make one you would need a device that could produce an infinite voltage (not possible).Ģ) Please search "Thevenin Norton Equivalent." Here you will find that a voltage source with series resistance can be modeled as a current source with parallel resistor. To my knowledge there are no perfect constant current sources. It will take on whatever voltage is necessary to do so including both positive and negative voltages. Problems with cords (such as extension and appliance cords), plugs, receptacles, and switches also cause electrical fires. Most electrical distribution fires result from problems with 'fixed wiring' such as faulty electrical outlets and old wiring. I'll give you a few examples to consider:ġ) The current source is a mathematical construct that maintains a constant current. Problems with cords, plugs, receptacles, and switches also cause electrical fires. The current source is a different animal. With more current and a fixed voltage there will be more power. As you stated as the resistance is decreased more current flows. Examples include a battery or wall outlet. In my opinion the voltage source is relatively straightforward. Training solution The courses we could offer are listed below in order of difficulty and each one is a recommended 5 day course: 1. We will gladly supply a copy of the certificate upon request. FREE100-Page Digital Electrical Maintenance Training Handbook(Value 20) 100 CouponToward any Future Electricity Forum Event (Restrictions Apply) 1.4 Continuing Education Unit (CEU) Credits FREEMagazine Subscription (Value 25. 422 Pages200718.59 MBNew Basic Electrical Engineering Has Been Written As A Core Course For All Engineering Students Viz. CAUTION - this is an answer from an electrical engineer. Our current B-BBEE verification is that of a Level Four (4) as an empowered supplier.
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