A resistor with a resistance of 2 MΩ is connected in series with a 5 µF capacitor and a battery with emf 10 V. The capacitor has originally a charge of 5 µC and then discharged. At what time will the charge be equal to 1µC?



A. 16 sec
B. 1.6 sec
C. 3.2 sec
D. 8 sec