CapacitanceEasy
Question
Two spherical conductors A and B of radius a and b (b > a) are placed in air concentrically. B is given charge + Q coulomb and A is grounded. The equivalent capacitance of these is :
Options
A.4π∈0
B.4π∈0(a + b)
C.4π∈0 b
D.4π∈0 
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