A certain series RC circuit is formed using a resistance R, a capacitor without dielectric having a capacitance C = 2 F and a battery of emf E = 3V. The circuit is completed and it is allowed to attain the steady state. After this, at t = 0, half the thickness of the capacitor is filled with a dielectric of constant K = 2 heat generated (in joule) in the circuit between t = 0 and t = ∞?

Question

G1 Physics · Accepted Answer

Use the RC relation q = CE(1- e ( − t / τ ) ) e^(-t/τ)) e ( − t / τ )) or q = q₀ e ( − t / τ ) , e^(-t/τ), e ( − t / τ ) , with τ = R(th)C. Substituting the given values gives 3.