Please solve question 70. Share with your friends Share 0 Anshu Agrawal answered this Dear student, Firstly, C1 is charged upto potential V. Charge stored q=C1V..........(1) Now C1 and C2 are connected in parallel. Let charge on C1 is q1 and charge on C2 is q2 . Then VA−VB = q1C1 = q2C2 q1C2 =q2C1 ..............(2) Also, q1+q2 =q⇒q2 =q−q1 Hence from equation (2) q1C2 =(q−q1)C1 or, q1C2 =qC1−q1C1 or, q1(C1+C2 )=C1V.C1 [ From equation (1)] or,q1 = C21V1 C1+C2 Hence, VA−VB = q1C1 = C21V1 C1+C2C1 =C1V C1+C2V Option 1 is correct Regards 0 View Full Answer