I've long been confused by Lenz's law and I'm looking here trying to make sense of what is going on. https://www.learningelectronics.net/vol_1/chpt_15/2.html
It explains that if you have an inductor and pot in series and the current is constant, there is no voltage dropped across the coil. That's fine. It then says
that if the resistance of the pot is reduced so to increase the current, a voltage
is induced in the coil. My first question on that is, does the voltage across the inductor plus the voltage across the resistor add up to more than the battery voltage then?
It then says that the polarity of the induced voltage is such that it tries to keep
the current constant. Does that mean if you started out with say 12V battery and 1K pot resistance and then reduced the resistance the current stays at 12mA? If so, would that mean the voltage across the resistor decreases? Could anyone explain please?
It explains that if you have an inductor and pot in series and the current is constant, there is no voltage dropped across the coil. That's fine. It then says
that if the resistance of the pot is reduced so to increase the current, a voltage
is induced in the coil. My first question on that is, does the voltage across the inductor plus the voltage across the resistor add up to more than the battery voltage then?
It then says that the polarity of the induced voltage is such that it tries to keep
the current constant. Does that mean if you started out with say 12V battery and 1K pot resistance and then reduced the resistance the current stays at 12mA? If so, would that mean the voltage across the resistor decreases? Could anyone explain please?
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