jee-main 2018 Q18

jee-main · India · 15apr_shift2 Not Maths
A capacitor $\mathrm { C } _ { 1 }$ is charged up to a voltage $\mathrm { V } = 60 \mathrm {~V}$ by connecting it to battery B through switch (1). Now $\mathrm { C } _ { 1 }$ is disconnected from battery and connected to a circuit consisting of two uncharged capacitors $\mathrm { C } _ { 2 } = 3.0 \mu \mathrm {~F}$ and $\mathrm { C } _ { 3 } = 6.0 \mu \mathrm {~F}$ through a switch (2) as shown in the figure. The sum of final charges on $\mathrm { C } _ { 2 }$ and $\mathrm { C } _ { 3 }$ is: [Figure]
(1) $36 \mu \mathrm { C }$
(2) $20 \mu \mathrm { C }$
(3) $54 \mu \mathrm { C }$
(4) $40 \mu \mathrm { C }$
A capacitor $\mathrm { C } _ { 1 }$ is charged up to a voltage $\mathrm { V } = 60 \mathrm {~V}$ by connecting it to battery B through switch (1). Now $\mathrm { C } _ { 1 }$ is disconnected from battery and connected to a circuit consisting of two uncharged capacitors $\mathrm { C } _ { 2 } = 3.0 \mu \mathrm {~F}$ and $\mathrm { C } _ { 3 } = 6.0 \mu \mathrm {~F}$ through a switch (2) as shown in the figure. The sum of final charges on $\mathrm { C } _ { 2 }$ and $\mathrm { C } _ { 3 }$ is:\\
\includegraphics[max width=\textwidth, alt={}, center]{1350fc77-f386-413d-b099-6e647954663e-04_291_568_324_230}\\
(1) $36 \mu \mathrm { C }$\\
(2) $20 \mu \mathrm { C }$\\
(3) $54 \mu \mathrm { C }$\\
(4) $40 \mu \mathrm { C }$