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- A. The value of: A=5 ms C= 15 ms Peak to peak = 10 B D Figure 1 (a) From Figure 1 above, identify the frequency (f), value of time at A, B, C, D, period (T) and the RMS.Find the average and r.m.s. values of the a.c. voltage whose waveform is given in the figurebelow. a. Average value b. RMS valueGet the RMS and average value of the voltage. Frequency is 60 Hz. Please write properly the solution. Make sure to recheck.
- Q18. An AC waveform is shown in figure B3. 4 10 20 30 40 50 70 100 Time (ms) 110 -2 -3 -4 -5 Figure B3 i) For the above waveform, determine a. Peak-to-peak voltage b. Time period c. Frequency ii) For the above waveform, determine a. Peak Factor b. Form FactorPlease show you detailed solution Number 10 A voltage of 250 volts at 50 Hz is impressed on a circuit having a 60-ohm resistor, 35-?F capacitor, and a 0.25-henry inductor in series. Determine power factor. A. 0.979 C. 0.924 B. 0.862 D. 0.7073. A sinusoidal waveform is displayed on a c.r.o. screen. The peak-to-peak distance is 5 cm and the distance between cycles is 4 cm. The 'time'switch is on 100 µs/cm and the 'volts/cm' switch is on 10 V/cm. Determine (i) angular frequency (ii) peak (iii) rms value of voltages (iv)Time period and (v) form factor.
- 3. A sinusoidal waveform is displayed on a c.r.o. screen. The peak-to-peak distance is 5 cm and the distance between cycles is 4 cm. The 'time ' switch is on 100 µs/cm and the 'volts/cm' switch is on 10 V/cm. Determine (i) angular frequency (ii) peak (iii) rms value of voltages (iv)Time period and (v) form factor.What is the average Power at maximum resistance? Why? What is the effect to the voltage and current when increasing the load resistance?The temperature of a noninductive heater unit is controlled by a reactor. The heater unit and the reactor are connected in series across a 250 V, 60 Hz source. The voltage across the heater unit is 200 V. The voltage across the reactor is 100 V. The current in the circuit is 10 A. Determine: the power factor of the series circuit. the power factor of the reactor. the impedance of the reactor. the effective resistance of the reactor. the inductive reactance of the reactor
- The step down DC chopper uses DC source voltage V(dc) = 200 V and resistive load impedance of 10 ohm. The duty cycle is 0.4 the voltage drop across the switch may be taken as zero, Calculate : (a) Average and RMS value of output voltage. (b) Average and RMS value of output current.An 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?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