AC Theory, Level 2 Final Test prep 2024.

AC Theory, Level 2 Final Test prep 2024 1.) A circuit that contains resistance and capacitance is called an RC circuit. - ANSWER True For a series RC circuit, the ? must be the same through all parts of the circuit. - ANSWER Current When solving a series RC circuit, the voltage is the reference. - ANSWER False What is the total resistance of the circuit shown? - ANSWER 11 Ω What is the total capacitance of the circuit shown? Calculate to the nearest whole number of the unit specified. - ANSWER 55 nF Label the correct impedance triangle to show the vector relationships for an RC series circuit. - ANSWER Z is hypotenuse, R is adjacent, Xc is opposite. Given the circuit and parameters shown, solve for the following: (Round the FINAL answers to at least two decimal places in the specified unit.) - ANSWER Z = √R² + X꜀² Z = √40² + 60² Z = 72.11 Ω * Eᵣ = Iₜ x R Eᵣ = 3.5 x 40 Eᵣ = 140 V * E꜀ = Iₜ x X꜀ E꜀ = 3.5 x 60 E꜀ = 210 V * Eₜ = Iₜ x Z Eₜ = 3.5 x 72.11 Eₜ = 252.39 V * Pᵣₑₐ꜀ₜ = Iₜ x E꜀ Pᵣₑₐ꜀ₜ = 3.5 x 210 Pᵣₑₐ꜀ₜ = 735 VAR * Pₐₚₚ = Iₜ x Eₜ Pₐₚₚ = 3.5 x 252.39 Pₐₚₚ = 883.36 VA * Pₜᵣᵤₑ = Iₜ x Eᵣ Pₜᵣᵤₑ = 3.5 x 140 Pₜᵣᵤₑ = 490 W * PF = R / Z x 100 PF = 40 / 72.11 x 100 PF = 55.47 % * θ = cos⁻¹(R/Z) θ = cos⁻¹(40 / 72.11) .