6 Directions: Solve the following problems completely. Enclose your finalanswer in a BOX.1. An inductive circuit takes a current of 15 A at 0.78 pf whenconnected to a source 250 V, 50 hz mains.. If the circuit is nowconnected in series with capacitor of 120 uF supplied by a sourcegiven by E = – 350 sin (550t + 75°) supply. Calculate the current,power and power factor it draws.2. A coil having a resistance of 6 W and an inductance of 0.015 H isconnected in series with another impedance having a resistance of4 W and capacitance of 250 uF. The circuit is supplied by e = -400 cos (500t – 65°) supply. Determine the total power and pffactor drawn from the supply and equation of the resulting current?3. An emf represented by e= - 250 cos (100pt + 37') is impressedacross a circuit consisting of a 6 W resistor and 100 uF capacitorand 0.0205 H inductor. Determine the expression for the current.Find the power supplied and power factor of the circuit.4. A capacitive is draws 8 A at 0.78 lead pf when connected across a550 V, 50 hz supply. If the circuit is connected in series with a 150mH inductance supplied by a 440 V, 60 hz source. Find the currentand reactive power drawn?5. A capacitive circuit takes 1055 VARS at a pf of 0.84 from a 200 V,50 hz source, what will be the value of additional inductance to beinserted in series with the circuit if the overall is to be 0.96 lag?6. A circuit takes a current of 12 A inductive and draws 0.75 reactivefactor when connected to a 250 V, 50 Hz supply. In other circuittakes a current of 12 A and consumes 1050 VARS capacitive whenconnected to a 300 V, 40 Hz. Calculate the current taken and thetotal power consumed when two circuits are connected in seriessupplied by E= -500 cos (1000t – 35°) Hz supply.7. A circuit consists of a pure resistance and a coil in series. Thepower dissipated in the resistance is 250 W and the drop across itis 100 V. The reactive power dissipated in the coil is 385 VARSand the drop across it is 165 V. Find the power factor of the circuit,parameters of the circuit and the supply voltage.8. Two coils are connected in series. With 5 A DC through the circuit,the potential drops across the coils are 35 V and 40 V respectively.With 7 A at 100 Hz, the potential drops across the coils are 120 Vand 150 V respectively. If the two coils are now connected inseries and supplied by a source e = 400 cos (500t -25°), what willbe the current taken, power and power factor?9. A coil takes a current of 10 A of 0.76 pf from 250 V, 60 Hz source.If the coil is used temporarily on a 260 V, 40 Hz source, determinethe value of resistance to be connected in series with the coil toavoid over current condition.10. A coil is in series with a capacitor across a 440 V, 50 Hz supply. Thecurrent taken by the circuit is 10 A and the power consumed is 1250 Wand the inductance of the coil is 0.205 H. Calculate the capacitance ifthe power factor of the circuit is: a) leading and b) lagging.11. When supplied with a current at 240 V, single phase at 50 Hz acertain circuit takes 15 A. If the frequency of supply is changed to60 Hz, the circuit takes 12 A. Calculate the parameters of thecircuit.12. A resistance, inductance and a capacitance of 120uF are connected

Answered: Image /qna-images/answer/cfb81b6a-2ec1-4c68-b275-0a491bc2ae4f.jpg

birections: Solve the following problems completely. Enclose your final nswer in a BOX. 1. An inductive circuit takes a current of 15 A at 0.78 pf when connected to a source 250 V, 50 hz mains.. If the circuit is now connected in series with capacitor of 120 uF supplied by a source given by E = - 350 sin (550t + 75°) supply. Calculate the current, power and power factor it draws.

birections: Solve the following problems completely. Enclose your final nswer in a BOX. 1. An inductive circuit takes a current of 15 A at 0.78 pf when connected to a source 250 V, 50 hz mains.. If the circuit is now connected in series with capacitor of 120 uF supplied by a source given by E = - 350 sin (550t + 75°) supply. Calculate the current, power and power factor it draws.

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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