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1. Electric Charges and Fields
normal
આકૃતિમાં બધા કેપેસિટર $1 \mu F$ છે,તો $A$ અને $B$ વચ્ચે સમતુલ્ય કેપેસિટન્સ .......... $\mu F$ હશે.
A
$1$
B
$2$
C
$0.5$
D
$\infty$
Solution
This combination forms a $G P$,
$s=1+\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\cdots$
Sun of infinite $G P$,
$s=\frac{a}{1-r}$
$s=\frac{1}{1-\frac{1}{2}}$
$s=\frac{1}{\frac{1}{2}}$
$\therefore s=2$
Hence, capacitance of the combination
$C_{\infty}=2 \times 1 \mu F=2 \mu F$
Standard 12
Physics
