A test voltage is applied to the input of an electrical network. v(t) = 1V sin(2π.5kHz. t) The input current is measured. i(t) = 268mA sin(27 5kHz t 46°) What is the circuit's input impedance, Zin? v(t) Jē Zin Electrical Network
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- If an electrical circuit draws 100W + J100VAR from a sinusoidal source, then what would the circuit be? Explain why. a) a pure resistor circuit b) a series or parallel R-L circuit c) a series or parallel R-C circuit d) a series L-C circuitAn alternating current is given by the expression i = 200 sin (314t + T/6) amperes. The maximum value is and the frequency of the current isThe waveforms show a voltage (v) and a current (i) for an AC circuit. The current signal has a value of 0A at t = 25ms, 75ms, and 125ms. The voltage signal reaches a maximum value of 5 volts at t = 83.33ms and 183.33ms. 6 5 4 3 i 1 1. 0.05 0.1 1 0.15 0.2 0.25 0.3 -1 1. -2 -3 -4 -5 -6 a) What is the frequency of the current signal, in Hz? b) What is the angular frequency of the voltage signal, in rad/s? c)What is the phase difference between the current and voltage [5 pts] signals (in degrees)? d)Does the voltage signal LEAD or LAG the current signal?
- An rms voltage of 22.2 V with a frequencyof 1.00 kHz is applied to a 0.290-mH inductor. (a) What is the rmscurrent in this circuit? (b) By what factor does the current changeif the frequency of the voltage is doubled? (c) Calculate the current for a frequency of 2.00 kHz6. An alternating voltage is given by v = 20 sin 157 t. The frequency of the alternating voltage is ............ (1) 50 Hz (iii) 100 Hz (ii) 25 Hz (iv) 75 HzThe sinusoidal voltage source in the circuit seen in (Figure 1) is operating at a frequency of 46 krad/s. The coefficient of coupling is adjusted until the peak amplitude of 1 is maximum. Figure 2002 100 Q 5 mH3 7502 300 £2 ww 20 mH 1 of 1 40 nF Part A What is the value of k? Express your answer using three significant figures. k = .085 Submit Part B VAΣ vec X Incorrect; Try Again; 28 attempts remaining i₁ = Submit Previous Answers Request Answer What is the peak amplitude of 1 if Ug = 399 cos(4.6 x 10¹) V? Express your answer to three significant figures and include the appropriate units. Provide Feedback μA Value Request Answer Units ? ?
- 7. In a pure inductive circuit, the phase angle between the voltage waveform and current waveform will havephase shift * 180 deg O deg 45 deg O 90 deg 8. Why do we say the "voltage across" or "the voltage with respect to?" Why can't we just say voltage? * Voltage is a measure of electric potential difference between two electrical points. O It's an electrical cliche. The other point could be negative or positive. None of the above.The sinusoidal voltage source in the circuit seen in (Figure 1) is operating at a frequency of 54 krad/skrad/s. The coefficient of coupling is adjusted until the peak amplitude of i1 is maximum. What is the peak amplitude of i1 if vg=429cos(5.4×104t)V?1. Consider the two circuits below being driven by an AC source Vac. What is the impedance between terminals a and b as the frequency goes to zero? What is the impedance as the frequency become extremely high? ell L1 1 ΜΗ C1 1 µF C2 1 µF b t Vac sine L2 1 ΜΗ C3 1 µF L3 1 µH Vac sine
- an ac circuit has a frequency of 400 hz. a 16- ohms resistor, a 0.0119-h inductor, and a 16.6- uf capacitor are connected in series. If the voltage connected to the circuit is 440v. How many degrees are the voltage and current out of phase with each other?An AC circuit has a frequency of 400 Hz. A 16-Ω resistor, a 0.0119-H inductor, and a 16.6-µF capacitor are connected in series. If the voltage connected to the circuit is 440 V. What is the power factor? Group of answer choices 71% 94% 67% 53%Given V 20 sin(@t + 60°) and V2 = 60 cos(ot- 10°). What is the phase angle %3D between the waveforms? All terms to be expressed in cosine terms. 60 80 20 40 Moving to another question will save this response. a hp O O O