Circuit Analysis II

Use this for “Write 10∠36.87° in rectangular form, and −3 − j4 in polar form.”

Use this for “Find the reactances of a 0.1 H inductor and a 100 μF capacitor at 60 Hz, and the frequency at which they are equal.”

Use this for “A 50 Ω resistor is in parallel with a capacitor of reactance 25 Ω. Find the impedance and its angle.”

Use this for “A 120 V rms source feeds a load Z = 8 + j6 Ω. Find the current and the real and reactive power.”

Use this for “A 960 W load runs at power factor 0.8 lagging on 120 V, 60 Hz. What capacitor raises the power factor to 0.95?”

Use this for “A sine wave peaks at 170 V. Find its rms value and the average power it delivers to a 60 Ω resistor.”

Use this for “An RC high-pass filter has R = 1 kΩ and C = 0.1 μF. Find its cutoff, and its gain and phase at 159.2 Hz.”

Use this for “A series RLC circuit has R = 10 Ω, L = 10 mH and C = 1 μF. Find the resonant frequency, Q and the bandwidth.”

Use this for “A filter gives 1 V out for 10 V in. Find its gain in decibels, and the power out when 5 W goes in.”

Use this for “An amplifier with 800 Ω output resistance drives an 8 Ω speaker. Find the turns ratio for maximum power.”

Use this for “Coils of 4 mH and 9 mH have a mutual inductance of 3 mH. Find k, and v₂ when i₁ rises 1 A in 1 ms.”

Use this for “A balanced Δ load of 20 Ω per phase at pf 1 is fed at 240 V. Find the phase and line currents and the power.”

Use this for “Replace a balanced Δ load of 30 Ω per phase with its equivalent Y, and find the line current at 208 V.”

Use this for “Two wattmeters on a balanced three-phase load read 1000 W and 2000 W. Find the total power and the power factor.”