1.

Five identical capacitors, of capacitance 20muF each , are connected to a battery of 150V , in a combination as shown in the diagram . Whatis the total amount of charge stored ?

Answer»

`15xx10^(-3)C`
`12xx10^(-3)C`
`10xx10^(-3)C`
`3xx10^(-3)C`

Solution :
Now at balance condition no current will PASS through BD CONSISTING of `20muF` capacitor.
Therefore , EQUIVALENT CIRCUIT will be

Equivalent capacitance of ABC path = Equivalent
capacitance of ADC path `=(20xx20)/(20+20)=(400)/(40)=10MUF`
So,equivalent capacitance of the circuit,
`C_(eq)=10+10=20muF`
`therefor` Total amountof charge stored `=C_(eq)xxV`
`=(20xx10^(-6)xx150)=3000xx10^(-6)C=3xx10^(-3)C`


Discussion

No Comment Found

Related InterviewSolutions