An Inductor Produces a Back Emf in a DC Series

question 18

Multiple Choice

An inductor produces a back emf in a DC series RL circuit when a switch connecting the battery to the circuit is closed. We can explain this by

• A) Lenz's law.
• B) increasing magnetic flux within the coils of the inductor.
• C) increasing current in the coils of the inductor.
• D) all of the above.
• E) only (a) and (c) above.

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