Question

48. A capacitor has a capacitance of 1.05 uF. Calculate the capacitance of the
capacitor which should be connected in series so that the effective capacitance is 1 uF.​

Answer 1

Answer:

Let there are three capacitors with capacitances C1,C2,C3 respectively and C1 is removed.

In first case, Ceq11=C11+C21+C31 ...(1)

In second case, Ceq21=C21+C31 ...(2)

From (1) and (2),  Ceq11=C11+Ceq21 

or 1/4=1/C1+1/6

or C1=12μF