An Uncharged Capacitor and a Resistor Are Connected in Series

question 69

Multiple Choice

An uncharged capacitor and a resistor are connected in series to a battery at t = 0 s. If ε = 15 V, C = 20 μF, and R = 4.0 × 10⁵ Ω, the current as a function of time for this circuit is

• A) It) = 37.5 e^-0.250t μA.
• B) It) = 150 e^-0.250t μA.
• C) It) = 37.50 e^-0.250t μA.
• D) It) = 37.5 e^-0.125t μA.
• E) It) = 300 e^-0.125t μA.

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