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प्रश्न
The equivalent capacitance of the combination shown in the figure is _________ .
विकल्प
C
2 C
C/2
none of these.
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उत्तर
2C
Since the potential at point A is equal to the potential at point B, no current will flow along arm AB. Hence, the capacitor on arm AB will not contribute to the circuit. Also, because the remaining two capacitors are connected in parallel, the net capacitance of the circuit is given by
`C_"eq" = C + C = 2C`
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