king6158 king6158
  • 23-01-2024
  • Physics
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A cylindrical capacitor has two co-axial cylinders of length 20 cm and radii 1.8 cm and 1.82 cm. The outer cylinder is earthed. The net capacitance of the system is
(a) 8.85 pF
(b) 17.7 pF
(c) 35.4 pF
(d) 70.8 pF

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