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An LR Circuit Contains an Ideal 60-V Battery,a 42-H Inductor

question 6

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An LR circuit contains an ideal 60-V battery,a 42-H inductor having no resistance,a 24-Ω resistor,and a switch S,all in series.Initially,the switch is open and has been open for a very long time.At time t = 0 s,the switch is suddenly closed.How long after closing the switch will the potential difference across the inductor be 24 V?


Definitions:

Dactylogram

An impression or imprint of a finger; a fingerprint.

Fingerprint

The unique pattern formed by the ridges on the tip of a human finger, used for identification purposes.

Dactylic

Pertaining to or consisting of dactyls, a form of meter in poetry characterized by a stressed syllable followed by two unstressed syllables.

Compound

A substance made up of two or more elements chemically combined in fixed proportions.

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