At T = 0 the Switch S Is Closed with the Capacitor

question 81

Multiple Choice

At t = 0 the switch S is closed with the capacitor uncharged.If C = 40 $\mu$ F, $\varepsilon$ = 50 V,and R = 5.0 k $\Omega$ ,how much energy is stored by the capacitor when I = 2.0 mA?

• A)20 mJ
• B)28 mJ
• C)32 mJ
• D)36 mJ
• E)40 mJ

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