Physics · Alternating Current
What is the standard mathematical expression for transient current i(t) during the growth of current in a series R-L circuit connected to a DC voltage source V?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1i = (V/R)[1 + exp((R/L)t)]
- 2i = -(V/R)[1 + exp((R/L)t)]
- 3i = -(V/R)[1 - exp((R/L)t)]
- 4i = (V/R)[1 - exp(-(R/L)t)]✓
Correct answer
i = (V/R)[1 - exp(-(R/L)t)]
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