An Inductance L, Resistance R, and Ideal Battery of Emf

question 19

Multiple Choice

An inductance L, resistance R, and ideal battery of emf are wired in series and the circuit is allowed to come to equilibrium.A switch in the circuit is opened at time t = 0, at which time the current is /R.At any later time t the potential difference across the resistor is given by:

• A)(1 - e^-Lt/R)
• B)e^-Lt/R
• C)(1 + e^-Rt/L)
• D)e^-Rt/L
• E)(1 - e^-Rt/L)

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Definitions:

Salvage Value

The calculated residual valuation of an asset at the end of its service life.

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The amount credited to the buyer when they exchange an asset towards the purchase of a new asset.

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A method of allocating the cost of a tangible asset over its useful life in a linear fashion.