Incorrect Question 9 For the following pairs of sinusoids, determine which one leads and by how much. V1(t) = 4 cos(377t + 10°) and v2(t) = -20 cos 377t V2 (t) leads v₁ (t) by 170° V2(t) lags v₁ (t) by 10° V2(t) lags v₁(t) by 170° V2 (t) leads v₁ (t) by 10°

Find the period of repetition of the following sinusoidal waveforms and express them in phasor repre- sentation: vi(t) = 12 cos(314t + 10°) V v2(t) = 4 sin(2765t – 75°) V i1(t) = -0.2 sin(600rt – 100°) A i2(t) = -2.5 cos(377nt + 120°) A

P.3: Find the rms value for the following sinusoidal waveforms a. v= 120 sin(377t + 60°) b. i=6x 10³ sin(2# 1000r) c. u=8 x 10-6 sin(2# 5000 + 30°) P.4: Find the rms value for the following sinusoidal waveforms a. v= 20 sin 754r b. v= 7.07 sin 377r c. i=0.006 sin(400r + 20°) d. i 16 x 10³ sin(377r - 10%) P.5: Write the sinusoidal expressions for voltages and currents having the following rms values at a frequency of 60 Hz with zero phase shifts: a. 4.8 V b. 50 mA c. 2 kV

Please answer a and b.Note: If not stated, assume a sine function.

please notice that the result should be (amplitude of the voltage vo )

Write each of the following phasor expressions as a single sinusoidal time domain expression using a single cosine term. Round all answers to two decimal places. 3+14/30° cos(100t + 2+j7 2ej20° cos(100t +

An electrical circuit with a sinusoidal current source, a resistor, and a capacitor all connected in parallel. The voltage across the capacitor: Select one: O a. Lags the current of the capacitor by 180° O b. Is in phase with the current of the current source Ос. O c. Lags the current of the capacitor by 90° O d. Leads the current of the current source by 90° O e. Leads the current of the capacitor by exactly 90°

Shown in the figure below is an "RC" circuit drive by an AC power source. The AC power source has an RMS voltage of Vps (RMS) = 11.58 Volts and is running at a frequency of f = 1.326e+04 Hz. resistor has a resistance of R = 3750 2 and the capacitor has an capacitance of C = 3.17e-09 Farads. Vps R ww Write the FORMULA for the total impedance of the circuit Ztot = Write the FORMULA for the phase of the total impedance of the circuit tot = Determine the numerical value of Ztot = Determine the numerical value of Pztot= Determine the current through the circuit: • I(PEAK) = • I(RMS) = Determine the voltage across the resistor: Amps Amps S2 C degrees

Find the phasor representation of an independent sinusoidal current source given as follows: i(t) = 3cos(300t + 30) + 5sin (100t + 60) A 3230 + 5260 B 3430 + 52 – 30 8430 Cannot be represented as a phasor E None of the above

Phasors 1.) Transform the following sinusoids to phasors: (a) - 10 cos(4t+ 75) (b) 5 sin(20t – 10°) (c) 4 cos 2t + 3 sin 2t