For the $RC$ circuit shown,the resistance is $R = 10.0 \ \Omega$,the capacitance is $C = 5.0 \ \mu F$ and the battery has voltage $\xi = 12 \ V$. The capacitor is initially uncharged when the switch $S$ is closed at time $t = 0$. At some time later,the current in the circuit is $0.50 \ A$. What is the magnitude of the charge across the capacitor at that moment in $\mu C$?
- A$0$
- B$25$
- C$30$
- D$35$
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