Alternating Current - Voltage and Current Relation | video in HINDI | EduPoint. In this Physics video tutorial for class 12 in Hindi we explained the basic theory of alternating current and the the relation between voltage and current in AC. We also compared alternating current (AC) with direct current (DC). In DC the source may change its voltage, but does not change its polarity; whereas in AC the source chages its polarity in regular basis. This video lecture of Physics is indispensable for Science students of class 12 of any board, CBSE, ICSE or any other state board. In this lecture we see that a standard alternating current is that whose voltage and current are sine wave function of time. We also learn in this video tutorial that the wave for voltage and that for current have no phase difference.
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