Question

can anyone please solve this...

Answer 1

hello friend....!!!

according to the given question , we should find the effective capacitance between A and B . 

let us consider , the upper 3μF as C3 and the bottom capacitance as C4 and the middle two as C1 and C2 respectively ,

⇒ C2 and C4 are parallel so ,

C = 3 + 3 = 6μF -----------( 1 ) 

now , C1 and C are in series so ,

C" = CC1 / C1 + C 

therefore , 

C" = 6 X 3 / 6 + 3 

C" = 18 / 9 = 2μF   ------------( 2 )

now ,

C"  is parallel with C3 ,

therefore the effective capacitance between A  and B is ,

$C_{eq}$  = C3 + C"

therefore ,


$C_{eq}$ = 2 + 3 = 5μF .


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therefore the answer is option ' D '  = 5μF .


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hope it helps...!!!