# Q.90. Four capacitors and a battery are connected as shown in the figure. If the potential difference across the 7 $\mu$F capacitor is 6 V, then which of the following statements is incorrect? (a) The potential drop across the 12 $\mu$F capacitor is 10 V. (b) The charge in the 3 $\mu$F capacitor is 42 $\mu$C. (c) The potential drop across the 3 $\mu$F capacitor is 10 V. (d) The emf of the battery is 30 V.

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