An Uncharged Capacitor and a Resistor Are Connected in Series $\varepsilon$

question 65

Multiple Choice

An uncharged capacitor and a resistor are connected in series to a battery as shown. If $\varepsilon$ = 15 V,C = 20 $\mu$ F,and R = 4.0 $\times$ 10⁵ $\Omega$ ,the current as a function of time for this circuit is

• A)I(t)= 37.5 e^-0.250t \(\mu\)A
• B)I(t)= 150 e^-0.250t \(\mu\)A
• C)I(t)= 37.5 e^-0.125t \(\mu\)A
• D)I(t)= 300 e^-0.125t \(\mu\)A

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