JEE Advanced 2013Paper 1
- Exam
- JEE Advanced
- Year
- 2013
- Paper
- Paper 1
- Subject
- Physics
- Chapter
- Capacitance
JEE Advanced 2013 · Paper 1 · Physics · Capacitance
In the circuit shown in the figure, there are two parallel plate...
In the circuit shown in the figure, there are two parallel plate capacitors each of capacitance C. The switch S1 is pressed first to fully charge the capacitor C1 and the released. The switch S2 is then pressed to charge the capacitor C2. After some time, S2 is released and then is S3 pressed. After some time,
Options
- Athe charge on the upper plate of C1 is 2CV0 .
- Bthe charge on the upper plate of C1 is CV0 .
- Cthe charge on the upper plate of C2 is 0.
- Dthe charge on the upper plate of C2 is - CV0 .
Correct answer
B. the charge on the upper plate of C1 is CV0 .
Step-by-step solution
When S1 is closed,
charge on
After S2 is closed, half of the change will move to C2
charge on
when S2 is closed,
charge on but with reversed polarity,
Charge on upper plate
charge on
After S2 is closed, half of the change will move to C2
charge on
when S2 is closed,
charge on but with reversed polarity,
Charge on upper plate