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Capacitor question

2002 · Q130
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Capacitor question

2002 · Q130

NEETPhysicsCapacitorMCQ+4 / −1
A capacitor of capacity C1 charged upto V volt and then connected to an uncharged capacitor of capacity C2. The final potential difference across each will be
  1. A
    C1VC1+C2{{{C_1}V} \over {{C_1} + {C_2}}}C1​+C2​C1​V​
  2. B
    C2VC1+C2{{{C_2}V} \over {{C_1} + {C_2}}}C1​+C2​C2​V​
  3. C
    (1−C2C1)V\left( {1 - {{{C_2}} \over {{C_1}}}} \right)V(1−C1​C2​​)V
  4. D
    (1+C2C1)\left( {1 + {{{C_2}} \over {{C_1}}}} \right)(1+C1​C2​​)
View written solutionFree

Correct answer: A

Charge Q = C1V
Total capacity of combination (parallel)

C = C1+ C2

P.D.=QC=C1VC1+C2P.D. = {Q \over C} = {{{C_1}V} \over {{C_1} + {C_2}}}P.D.=CQ​=C1​+C2​C1​V​

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