In the circuit shown, the energy stored in the capacitor is n μJ . The value of n is _____.

Step-by-step solution

The capacitor works as an open circuit in the given configuration. The potential difference between the two plates of the capacitor will be the difference across the resistors having resistances 3   Ω and 4   Ω . Hence, the potential difference ∆ V across the capacitor can be calculated as follows: Δ V = 4 6 × 12 - 3 12 × 12   V = 5   V The formula to calculate the energy stored in the capacitor is given by U = 1 2 C ( ∆ V ) 2       . . . 1 Sub