(II) The RC circuit shown in Fig. 30–39 is called a low-pass filter because it passes low-frequency ac signals with less attenuation than high-frequency ac signals. (a) Show that the voltage gain is
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- (II) Determine (a) the maximum instantaneous power dissipated by a 2.2-hp pump connected to a 240 Vrms ac power source, and (b) the maximum current passing through the pumparrow_forward(b) An AC voltage source of V = 310 sin (25nt) is connected to a 140 N resistor, where V is in Volts and t is in seconds. Calculate the rms current across the resistor. Satu sumber voltan ulang-alik V = 310 sin (25nt) disambunakan dengan perintang 140 n di mana V adalah dalam voltan dan t adalah dalam saat. Hitung arus rms merentasi perintang |A (c) A series circuit contains a resistor R with resistance of 31 0, an inductor L of 115.75 mH with inductive reactance of 40 n and a capacitor C of 22.79 µF with capacitive reactance of 127 N. The circuit is connected to a rms voltage supply of 23 V with 55 Hz frequency. Satu litar sesiri mengandungi satu perintang R dengan kerintangan 31 0, satu induktor L 115.75 mH dengan kereaktifan induktif 40 n dan satu kapasitor C 22.79 µF dengan kereaktifan kapasitif 40 n. Litar tersebut disambungkan ke sumber voltan rms 23 V dengan frekuensi 23 Hz. (i) Calculate the impedance of the circuit. Hitung impedans litar. (ii) Find the frequency when the…arrow_forward- 28. In the circuit shown, the AC source has voltage V = 20 cos (@t) volt with @= 2000 rad/s the amplitude of the current will be nearest to (a) 2 A (c) 2/√5A 5 mH,40 mooo wwwww 6Ω 50 μF (b) 3.3 A (d) √5Aarrow_forward
- (c) The phasor diagram in Figure 3 shows the values of currents flowing through a parallel network of components connected across a 240 V/50HZ RMS supply. lc= 10 A IR=15 A VT IT L = 15 A Figure 3: Phasor diagram of a parallel RLC circuit Given: Ic 10A, IR = 15A, IL = 15A, V = 240V and f= 50 Hz, Calculate to 2dp: The total current flow through the cireuit Induetive reactance (i) (ii) (ii) (iv) Inductance of the coil Phase angle of the current waveform relative to the voltage waveform arks) (v) Power consumption of the circuitarrow_forward(b) An AC voltage source of V = 310 sin (25nt) is connected to a 140Q resistor, where V is in Volts and t is in seconds. Calculate the rms current across the resistor. Satu sumber voltan ulang-alik V = 310 sin (25nt) disambungkan dengan perintang 140 N di mana V adalah dalam voltan dan t adalah dalam saat. Hitung arus r.arrow_forward(I) At what frequency will a 2.40μF capacitor have a reactance of 6.10 KΩ ?arrow_forward
- (b) An AC voltage source of V = 310 sin (25nt) is connected to a 1400 resistor, where V is in Volts and t is in seconds. Calculate the rms current across the resistor. Satu sumber voltan ulang-alik V = 310 sin (25nt) disambungkan dengan perintang 140 N di mana V adalah dalam voltan dan t adalah dalam saat. Hitung arus rms merentasi perintang. [2 markah] A (c) A series circuit contains a resistor R with resistance of 31 N, an inductor L of 115.75 mH with inductive reactance of 40 N and a capacitor C of 22.79 µF with capacitive reactance of 127 N. The circuit is connected to a rms voltage supply of 23 V with 55 Hz frequency. Satu litar sesiri mengandungi satu perintang R dengan kerintangan 31 N, satu induktor L 115.75 mH dengan kereaktifan induktif 40 Q dan satu kapasitor C 22.79 µF dengan kereaktifan kapasitif 40 Q. Litar tersebut disambungkan ke sumber voltan rms 23 V dengan frekuensi 23 Hz. (i) Calculate the impedance of the circuit. Hitung impedans litar. Ω (ii) Find the frequency…arrow_forward(a) How much average power is dissipated in a short circuit of 232 V AC through a resistance of 0.180 Ω? (b) What current flows?arrow_forward(b) Calculate the peak voltage. Peak voltage, Vo: The AC signal off the mains in the US has an RMS value of 120 V and a frequency of 60 - Hz. (a) Calculate the period T of the voltage. Period, T: S T ms t, s ✓ V (c) Assuming that voltage at any time is given by V = Väsin(2πft), find the time in ms after t = 0 when the instantaneous voltage of 60-Hz AC first reaches the following values: Vo. ✔ms 2 Vo: OV: msarrow_forward
- If you placed an AC voltmeter across the outlets of a wall socket in Europe, you would measure voltage of about 220-V. (a) Calculate the peak voltage. (b) Calculate the rms current and peak current through a toaster whose resistance when operating is 150. (c) Calculate the power used by the toaster.arrow_forward4) Figure shows a CE power amplifier in which the collector resistor serves also as the load resistor. Assume (a) Determine the dc Q-point (Icq and VCeQ). (b) Determine the voltage gain and the power gain. +12 V Rc 100 N C3 R 680 Ω out Vin 10μF 10 μF 100 N REI 4.7 N R2 '510 Ω RE2 75 N C2 10 μF (a) Bac = Bpc = 125 %3Darrow_forward4. Consider the RC circuit indicated at right:. (a) Calculate the time constant for the circuit T= RC = (502) x 10-9 F) =1 %3D 120 nF 502 (b) If the capacitor is fully charged by a 25 V power supply, calculate the charge on each capacitor plate. q = CV = (120 x10-9 F)(25 v) = 3x/0-6 (c) When the circuit switch is thrown at t= 0 s, calculate the initial discharge current. (d) How much charge is on each plate at t = 25 µs? (e) Calculate the time constant for the circuit if the resistance is doubled, and a 2nd capacitor of the same capacitance is placed in series with the first capacitor.arrow_forward
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