1. A certain impedance taken 3A which lags the applied voltage by 53.13° when connectedto a 115V, 50HZ supply. Another impedance taken 5A and leads the applied voltage by45° when connected to the same supply.(a) If the two impedances are connected in series across a 230V, 50HZ source, calculatethe i(t) taken from the source.(b) Is the total circuit inductive or capacitive? Justify your answer why.Note: Express all your answer in polar form. However, note that final answer in number1 question must be expressed as a function of time.

In this question, Two loads are given, Find the current if both load are connected in series to…

Answered: 1. A certain impedance taken 3A which…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Similar questions

A coil of wire having a value of (5 + j8) ohms is connected in series with acapacitive reactance Xc, and this series combination is then connected in parallel with a resistor R. If the equivalent impedance of the circuit is 4 /0 o ohms, calculate the values of Xc and R.
A resistor of 50 ohms, a 200mH inductor, and a 1.5 x 10-4 F capacitor is connected in parallel to a 120-volt, 60 cps source. Calculate: a) the equivalent impedance b) the current in each load c) total current d) the total real, reactive, and apparent powers e) power factor.
The impedance of an electrical circuit is (30 − j50) ohms. Determine (a) the resistance, (b) the capacitance, (c) the modulus of the impedance, and (d) the current flowing and its phase angle, when the circuit is connected to a 240V, 50 Hz supply.
A resistance of 16 Ω is connected in series with a pure inductance of 39.9 mH and the circuit is connected to a 100 V, 50 Hz, sinusoidal supply. Calculate the phase angle of the impedance. Give your answer as a number without units to 0 decimal places.
A parallel circuit of 25 – ohm resistor, 64 – mH inductor and 80 - μF capacitor connected across a 110 V, 50 Hz, single phase supply is shown in the figure below. Calculate: a.) the current in the individual element, b.) the total current drawn from the supply, c.) overall power factor of the circuit. Draw a neat phasor diagram showing IR, IL and IC.
A coil of inductance 318.3 mH and neg[1]ligible resistance is connected in series with a 200 resistor to a 240V, 50 Hz supply. Calculate (a) the inductive reactance of the coil, (b) the impedance of the circuit, (c) the current in the circuit, (d) the p.d. across each component, and (e) the circuit phase angle
Three coils each having resistance 6 and inductance LH areconnected in delta, to a 415V, 50Hz, 3-phase supply. If the linecurrent is 30A, fine the value of L.
A 3-phase, 50 Hz, 3000 V motor develops 600 H.P. (447·6 kW), the power factor being 0·75 lagging and the efficiency 0·93. A bank of capacitors is connected in delta across the supply terminals and power factor raised to 0·9 lagging. Each of the capacitance units is built of five similar 600-V capacitors. Determine the leading Kvar taken by each three sets.
A 3Ø, 1000KW, 2500V alternator is open-circuited and is operated at rated speed toproduce rated current at 4A excitation. Maintaining the open-circuit and with theexcitation adjusted to 4A, the voltage between stator terminal is 1300V. The effectiveresistance between terminal as measured with dc is 2Ω. Determine the %V.R. of thealternator at half-load and pf of 0.8 lagging.Note: Please read and analyze carefully the problem question.
The total kVA rating of capacitors required to raise the full-load power factor of a 3-phase, 440 V, 50 Hz induction motor from 0.75 to 0.85 lagging is Qc = 15 KVAR. Capacitors are delta connected. (i) Determine the line current drawn by the capacitor bank (ii) Determine the phase current of the capacitor bank (iii) Determine the capacitive reactance per phase Xc (iv) What will be the capacitance per phase if the capacitors are delta connected ?
A 3-phase balanced star connected inductive coil load, each of reactance 22 ohms are connected to a 3 phase 210V, 50 Hz supply. Calculate the inductance of each coil, which when connected in delta to the same supply will take the same line current. Reactance Xc is = The Inductance L =
A 5-ohm resistor is connected in series with a 25 micro-farad capacitor. A source voltage of158 volts, 50 Hz supplies the combination. Determine the following: e. Reactive power supplied by the sourcef. Apparent power of the circuitg. Power factor of the entire circuit

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