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(i) Apply the superposition theorem to determine the currents 11, 12 and 13 in the following network assuming: E1 = 55V E2 = 35V R1 = 18 Ω R2 = 270 R3 = 46 Ω R4 = 15 02 R5 = 25 Q R6 = 80 Q 11 R1 E1 R4 R5 13 R6 R3 12 R2 (load) E2

(i) Apply the superposition theorem to determine the currents 11, 12 and 13 in the following network assuming: E1 = 55V E2 = 35V R1 = 18 Ω R2 = 270 R3 = 46 Ω R4 = 15 02 R5 = 25 Q R6 = 80 Q 11 R1 E1 R4 R5 13 R6 R3 12 R2 (load) E2

Introductory Circuit Analysis (13th Edition)
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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20:28 Ten dokument zawiera pismo odręczne, kształt... E1 = 55V E2 = 35V R1 = 18 Q R2 = 270 R3 = 46 Ω R4 = 15 Ω R5 = 25 Q R6 = 80 Q V1 25 V 11 (i) Apply the superposition theorem to determine the currents 11, 12 and 13 in the following network assuming: R1 Resistor 50 Ω E1 R4 R5 Capacitor Resistor 33μF 1002 13 R6 R3 ||| 12 R2 (load) E2 (ii) With E2 removed and replaced with a short circuit, It is required for the above circuit to supply the maximum amount of power to the load. Calculate, using an appropriate theorem, the value of the load to satisfy this. (iii) Using an appropriate method, explain the effect upon circuit components after the circuit in task (i) was repurposed for task (ii). The field coil of a D.C. motor is shunted by a 2700 arc-quenching resistor as shown below: a. Explain what happens in the circuit when the supply is switched off, b. Calculate the total current supplied to the circuit 0.3 seconds after switching on c. Calculate the peak voltage VAB at the instant the supply is switched off (assuming steady state conditions have been achieved before switching off) d. Calculate the time taken for the coil current to fall to 20% of its normal running value after the supply is switched off (assuming steady state conditions have been achieved before switching off) ...| 74% e. Explain the effects on the circuit if the arc quenching resistor was replaced with a 3000 resistor. O r ||
Transcribed Image Text:20:28 Ten dokument zawiera pismo odręczne, kształt... E1 = 55V E2 = 35V R1 = 18 Q R2 = 270 R3 = 46 Ω R4 = 15 Ω R5 = 25 Q R6 = 80 Q V1 25 V 11 (i) Apply the superposition theorem to determine the currents 11, 12 and 13 in the following network assuming: R1 Resistor 50 Ω E1 R4 R5 Capacitor Resistor 33μF 1002 13 R6 R3 ||| 12 R2 (load) E2 (ii) With E2 removed and replaced with a short circuit, It is required for the above circuit to supply the maximum amount of power to the load. Calculate, using an appropriate theorem, the value of the load to satisfy this. (iii) Using an appropriate method, explain the effect upon circuit components after the circuit in task (i) was repurposed for task (ii). The field coil of a D.C. motor is shunted by a 2700 arc-quenching resistor as shown below: a. Explain what happens in the circuit when the supply is switched off, b. Calculate the total current supplied to the circuit 0.3 seconds after switching on c. Calculate the peak voltage VAB at the instant the supply is switched off (assuming steady state conditions have been achieved before switching off) d. Calculate the time taken for the coil current to fall to 20% of its normal running value after the supply is switched off (assuming steady state conditions have been achieved before switching off) ...| 74% e. Explain the effects on the circuit if the arc quenching resistor was replaced with a 3000 resistor. O r ||
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