COMEDK · Physics · 18. Capacitance
Two capacitors \(\mathrm{C}_1\) and \(\mathrm{C}_2\) are charged to 100 V and 120 V respectively. It is found that upon connecting them together in parallel, the potential on each one of them is zero. Therefore
- A \(5 C_1=3 C_2\)
- B \(5 C_1+6 C_2=0\)
- C \(5 C_1=6 C_2\)
- D \(C_1+3 C_2=0\)
Answer & Solution
Correct Answer
(C) \(5 C_1=6 C_2\)
Step-by-step Solution
Detailed explanation
Let the charges on the capacitors be \(Q_1 = C_1 V_1\) and \(Q_2 = C_2 V_2\). Given \(V_1 = 100\) V and \(V_2 = 120\) V, the charges are \(Q_1 = 100 C_1\) and \(Q_2 = 120 C_2\). When the capacitors are connected in parallel, the total charge is conserved. If the final potential…
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