Correct Answer: Option C

Explanation

Energy stored in a capacitor is given by
E = \(\frac{1}{2}\)CV\(^2\)
But the effective capacitance for the parallel arrangement is given by
C = C\(_1\) + C\(_2\)
= 2 + 3
= 5μF = 5 x 10\(^{-6}\) x (100)\(^2\)
∴E = \(\frac{1}{2}\)CV\(^2\)
= \(\frac{1}{2}\) x 5 x 10\(^{-6}\) x 10\(^4\)
2.9 x 10\(^{-2}\)J

• if 5^(2x)=125 find x? Answer this

  3 Answers   ·   Mathematics   ·   4 days ago
• how does post utme looks like and what are the subjects required for a medical student? Answer this

  2 Answers   ·   2 days ago
• What are the male and female reproductive hormones in animals? Answer this

  4 Answers   ·   Agricultural Science   ·   2 days ago