Physics · 2020
JEE Main · 9 January 2020, Shift 2 · Q12
Two identical capacitors A and B, charged to the same potential 5V are connected in two different circuits as shown below at time t =0. If the charge…
Two identical capacitors A and B, charged to the same potential 5V are connected in two different circuits as shown below at time $\displaystyle \mathrm{t}=0$. If the charge on capacitors A and B at time $\displaystyle \mathrm{t}=\mathrm{CR}$ is $\displaystyle \mathrm{Q}_{\mathrm{A}}$ and $\displaystyle \mathrm{Q}_{\mathrm{B}}$ respectively, then (Here e is the base of natural logarithm)
Official answer
(4)
$\displaystyle Q_A=V C, Q_B=\frac{V C}{e}$
More from Capacitors
- Two capacitors of capacities 2 C and C are joined in parallel and charged up to potential V. The battery is removed and the capacitor of capacity C…2021
- Space between the plates of a parallel plate capacitor of plate area 4 cm^2 and separation of 1.77 mm, is filled with uniform dielectric materials…2025
- Two parallel plate capacitors C_1 and C_2 each having capacitance of 10 μ F are individually charged by a 100 V D.C. source. Capacitor C_1 is kept…2023
- Calculate the amount of charge on capacitor of 4 μ F. The internal resistance of battery is 1 Ω:2021
- A parallel plate capacitor of capacitance 200 μ F is connected to a battery of 200 V. A dielectric slab of dielectric constant 2 is now inserted into…2021
- A capacitor P with capacitance 10 × 10^-6 F is fully charged with a potential difference of 6.0 V and disconnected from the battery. The charged…2026
- The charge on capacitor of capacitance 15 μ F in the figure given below is:2022
- Three capacitors of capacitances 25 μ F, 30 μ F and 45 μ F are connected in parallel to a supply of 100 V. Energy stored in the above combination is…2024
JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.