given that potential differene across `1muF` capacitor is `10V`. Then,

Options

A. potential difference across `4muF` capacitor is `40V`
B. potential difference acros `4muF` capacitor is `2.5V`
C. potential diference across `3muF`e capacitor is `5 V`
D. value of `E` is `50 V`

Answer

B

Explanation

in series `V prop 1/C` (as `q=constant`)
`:. V_2/V_1=1/4`
`or V_2=V_1/3=10/4=2.5V`
`V_3/V_1=1/9`
`:. V_3=V_1/9=10/9V`
Now, `E=(10+2.5+1/9)V`