2. Aa circuit connected to a 115-V, 50 Hz supply takes 0.8 A at a power factor of 0.3 lagging. Calculate the resistance and inductance of the circuit assuming (a) the circuit consists of a resistance and inductance in series and (b) the circuit consists of a resistance and inductance in parallel.
2. Aa circuit connected to a 115-V, 50 Hz supply takes 0.8 A at a power factor of 0.3 lagging. Calculate the resistance and inductance of the circuit assuming (a) the circuit consists of a resistance and inductance in series and (b) the circuit consists of a resistance and inductance in parallel.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:2. Aa circuit connected to a 115-V, 50 Hz supply takes 0.8 A at a power factor of 0.3
lagging. Calculate the resistance and inductance of the circuit assuming (a) the
circuit consists of a resistance and inductance in series and (b) the circuit consists of
a resistance and inductance in parallel.
3. Consider an electric circuit shown in the figure below. Determine (a) the current and
power consumed in each branch, and (b) the supply current and power factor.
V = 100-445°
www
(1)
1092
(2)
mmmm
2592
(3)
592
-j5/32
4. A resistor of 12 ohms and an inductance of 0.025 H are connected in series across a
50 Hz supply. What values of resistance and inductance when connected in
parallel will have the same resultant impedance and pf. Find the current in each
case when the supply voltage is 230 V.
5. A voltage of 200 Z 53.8° is applied across two impedances in parallel. The value of
impedances are (12+j16) and 10-j20). Determine the kVA, KVAR and kW in each
branch and the power factor of the whole circuit.
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