A Series Circuit Consists of an Open Switch, an Ideal $\varepsilon _ { 0 }$

question 151

Multiple Choice

A series circuit consists of an open switch, an ideal emf source $\varepsilon _ { 0 }$ , a $5.0 - \mathrm { k } \Omega$ resistor, and a 4.0-H inductor. If the potential across the resistor is $65.0 \mathrm {~V}$ at $2.0 \mathrm {~ms}$ after the switch is closed, find the source emf, $\varepsilon _ { 0 }$ .

• A) \(56 \mathrm {~V}\)
• B) \(36 \mathrm {~V}\)
• C) \(76 \mathrm {~V}\)
• D) \(71 \mathrm {~V}\)

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