The Current I (In Amperes) When 100 Volts Is Applied $I = 5 e ^ { - 2 t } \sin t$

question 56

Multiple Choice

The current I (in amperes) when 100 volts is applied to a circuit is given by $I = 5 e ^ { - 2 t } \sin t$ , where $t$ is the time (in seconds) after the voltage is applied. Approximate the current at $t = 0.8$ second after the voltage is applied. Round your answer to two decimal places.

• A) \(I ( 0.8 ) \approx 0.62\) ampere
• B) \(I ( 0.8 ) \approx 0.52\) ampere
• C) \(I ( 0.8 ) \approx 0.82\) ampere
• D) \(I ( 0.8 ) \approx 0.72\) ampere
• E) \(I ( 0.8 ) \approx 0.92\) ampere

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