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