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2. Electric potential and capacitance — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics2. Electric potential and capacitance1 Mark
MCQ
When two identical capacitors are in series have $3\,\mu F$ capacitance and when parallel $12\,\mu F$. What is the capacitance of each.......$\mu \,F$
  • ✓
    $6$
  • B
    $3$
  • C
    $12$
  • D
    $9$
✓

Answer

Correct option: A.
$6$
a
(a) In series $C' = C/n$ i.e. $C = nC' = 2 \times 3 = 6\,\mu F$
In parallel $C' = nC$ i.e. $C = \frac{{C'}}{n} = \frac{{12}}{2} = 6\,\mu F$

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