Calculate the maximum value of the resultant e.m.f. and its phase relative to e.m.f. eA
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Three e.m.f.s, eA = 50 sinwt, eB = 80 sin(wt – π/6) and eC = 60 coswt volts, are
induced in three coils connected in series so as to give the phasor sum of the three
e.m.f.s. Calculate the maximum value of the resultant e.m.f. and its phase relative to
e.m.f. eA
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- Quistion.4. a) A sinusoidal voltage is applied to the resistive circuit in figure.Q.4. a. Determine the following: i. Ims ii. Iavg iii. Ip iv. Ipp 10V 1.0 ΚΩ Figure.Q.4.aAn alternating current varying sinusoidally with a frequency of 50 Hz has anrms value of 20 A.a) Determine the instantaneous value at 0.0025 seconds.b) Determine the instantaneous value, 0.0125 seconds after passingthrough a positive maximum value.c) At what time, measured from a positive maximum value, will theinstantaneous current be 14.14 A?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
- 3-9 An rms ac voltmeter and a peak-to-peak-reading ac voltmeter are to be used to determine whether three ac signals are sinusoidal. Deter. mine whether the signals are sinusoidal if the following readings are obtained First signal Second signal Third signal peak-to-peak reading = 35.26 V rms reading. - 12.00 V peak-to-peak reading - 11.31 V rms reading = 4.00 V peak-to-peak reading = 25.00 V rms reading -8.83 VC. Draw a general sine wave V vs t and I vs t plot for a purely resistive and a purely inductive circuit and show leading lagging parameters and clearly mark the phase difference.SINUSADAL ALTER UATING SIDES 5CM 471t is APPUED TO A H. 5cm IS WOUND HTH 300 TU IN 3.) A SINUSODAL ALTERUATING SINUSADAL ALTERNATING VOLTAGE HAC N C.m.s VALUE OF 200 V FREQUENCY OF so Hz. IT THE ZERO AXIS IN A CROSSES POSITIVE DIRECTION KHEN t=0. DETERMINE li) THE TIME WHEN VOLTAGE FIRST REACHES THF STANTANEOUS VUE OF 2wY AND (i) THE TME HEN KOUAGE LETER PASSING THROUGH Ts MAXIMUM POSITIVE YALUE REACHES THE VALUE 11141.4 V. (0.0025 SELOND (ii) 1/300 SECOND) OF 200 SN 47 E iS APPUED TO A HW AN ALTEFNSTNG VOLTAGE SEPIES VITH A KRISTANE OF 40 2.IF THE
- Define the following: a. R.m.s value of a sinusoidal wave. b. Form factor , Peak factor. c. Power triangle ( with figure)Shown in the figure below is an "RL" circuit drive by an AC power source. The AC power source has an RMS voltage of Vps (RMS) = 9.84 Volts and is running at a frequency of f = 8.585e+04 Hz. The resistor has a resistance of R = 2170 and the inductor has an inductance of L = 3.54e-03 Henries. Vps R ww Write the FORMULA for the total impedance of the circuit Ztot = Determine the numerical value of Ztot = 2890.5 Determine the numerical value of $z= = 41 Determine the current through the circuit: • I(PEAK) = 4.81E-3 • I(RMS) = 3.404E-3 Determine the voltage across the resistor: • VR(PEAK) = 7.387 • VR(RMS) = 5.22 ✔✔ Amps ✔Amps Write the FORMULA for the phase of the total impedance of the circuit z... = | tan-1 2701 R x Volts X Volts Determine the voltage across the inductor: • VL(PEAK) = 9.184 • VL(RMS) = 6.49 ✔ Volts Volts L R²+ WL- ✔ degrees 2 If a second circuit were connected in parallel with the inductor, this circuit would be considered as: O a low-pass filter O a capacitive switcher…Draw the waveform of voltage and current under the following conditions: A current which lags the voltage by 60°. A current which leads the voltage by 60°. A current which is in phase with the voltage
- Please explain in detail. A. In a series circuit, if the AC voltage is measured across the AC voltage source, will there be any variations in the phase of the AC voltage across each resistor from the measured AC voltage across the source? B. In an AC voltage source, why does voltage vary with time? Please explain in detail. C. In a series circuit, are the frequencies of the AC voltages across each resistor the same? Why is this so? ...Draw the sinusoidal waveform of the AC voltage and current for the given loads below. Describe the characteristics of the waveform for each load. A. Pure resistor B. Pure inductor C. Pure capacitorLet a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor, and a 4 capacitor. (a) Draw the circuit diagram. (b) Compute the series impedance. (C) Determine the current I delivered by the source. Is the current lagging or leading the source voltage? What is the power factor of this circuit?