What is the steady state current

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1. An 820-Ω resistor is connected in parallel with a 1000-pF capacitor. The impedance of the parallel combination is 410 - j410 Ω. Find the frequency.

2. Two impedances Z₁ = 300 - j50 Ω and Z₂ = 450 + j100 Ω are connected in parallel. Find the equivalent impedance of the pair.

3. A 100-mH inductor and a 100-Ω resistor are connected in parallel. The circuit is excited by a voltage source with v_S(t) = 10 cos (1 kt - 45°) V. What is the steady-state current i_S(t) flowing from the source?

Reference no: EM131295499

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