In the circuit as shown in the figure the effective capacitance between $A$ and $B$ is........$\mu \,F$
A$3$
B$2$
C$4$
D$8$
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C$4$
c (c) The given circuit can be simplified as follows
Equivalent capacitance between $A$ and $B$ is $C_{AB}$ = $4\, µF$
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The capacity of a parallel plate capacitor with no dielectric substance but with a separation of $0.4 \,cm$ is $2\,\mu \,F$. The separation is reduced to half and it is filled with a dielectric substance of value $2.8$. The final capacity of the capacitor is.......$\mu \,F$
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