Two identical capacitors each of capacitance 5 μ F are charged to potentials 2kV and 1kV respectively. Their -ve ends are connected together. When the +ve ends are also connected together, the loss of energy of the system is

Question

Two identical capacitors each of capacitance 5 μ F are charged to potentials 2kV and 1kV respectively. Their -ve ends are connected together. When the +ve ends are also connected together, the loss of energy of the system is, 160 J, Zero, 5 J, 1.25 J

MARKS App · Accepted Answer

Loss of energy = 1 2 C 1 C 2 ( C 1 + C 2 ) V 1 - V 2 2 = 1 2 5 × 10 - 6 × 5 × 10 - 6 2000 - 1000 2 5 + 5 × 10 - 6 = 5 × 5 2 × 10 = 1.25 J

Search any question & find its solution

Looking for more such questions to practice?