Two coils A and B known to have the same resistance are connected in series across a 110-V, 60-cycle line. The current and power delivered by the source are respectively 4.1 A and 300 W. If the voltage across coil A is twice that across coil B, calculate the inductance of coil B. A. 8.63 mH B. 7.36 mH C. 9.02 mH D. 4.49 mH

Two coils A and B known to have the same resistance are connected in series across a 110-V, 60-cycle line. The current and power delivered by the source are respectively 4.1 A and 300 W. If the voltage across coil A is twice that across coil B, calculate the inductance of coil B. A. 8.63 mH B. 7.36 mH C. 9.02 mH D. 4.49 mH

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...

See similar textbooks

Similar questions

AC electrical circuit is below: (refer picture below) a. Determine the current flowing in the load. b. If it is desired that the system power factor be 0.9. With system frequency = 50 Hz. Determine how large the capacitor is must be installed? Which one is correct? A/B/others answer A. C = 7.7015 mF B. C = 35.243 µF c. Please Draw all the phasor. Please give complete, details, and correct answer. Please do step by step, draw the phasor Please using handwriting (not typing ). THANK YOU, I WILL GIVE MANY THUMBS UP.
A series circuit consisting of a resistor that dissipates 640watts, a coil and an ideal capacitor is connected across a 220volts, 60Hz power supply. The current drawn by the load is 8 amperes. The voltage across the coil is 150 volts and its power factor is 0.8 lagging. Determine: a. the resistance of the resistor (10 Ohms)b. the resistance and the inductance of the coil ( 15 Ohms, 29.8416 mH)c. the voltage across the capacitor (181.6515 V)d. the capacitance of the capacitor (116.8207 μF)
When an impedance coil is connected to a 114 volt 60 cps source, the current is 3 A. If the current rises to 4 A when a 116 volt 25 cps is is impressed across the coil, determine the values of the resistance and inductance of the coil.
A resistor of 6 ohms and an unknown impedance coil in series draws 12 A from a 120 V, 60 Hz line. If the real power taken from the line is 1152 Watts, what is the coil inductance?
1- When connected in series with a pure resistor R with resistance r and inductance L, three pairs of currents are 5A with a sinusoidal voltage application with an effective value of 100V. The voltage across the coil and resistor element is 80V and 30V. a-Find the power and power consumed by the coil alone? b- Find the power consumed by the system and the power factor? c- Draw the voltage triangle, impedance triangle and power triangle?
A choke coil of resistance 8 ohm and inductance 0.15 H is connected in series with a capacitor of capacitance 125 ?? across a 230-V, 50- Hz supply. Calculate: (a) the inductive reactance, (b) capacitive reactance, (c) impedance, (d) current, (e) voltage across the coil and the capacitor, respectively. (f) phase difference between the current and the supply voltage.
In a balanced star connected system, three coils each having resistance 6Ω and inductance 12.58 mH are connected from a 415V, 50Hz, 3-phase supply. What is the inductive reactance of the coil which is connected between R phase and Neutral?
q13/ choose the correct answer The variation of the load is considered over a period of one year in an annual load curve. Select one: True False
For the circuit shown,a) To the coil of a henry, measure its internal resistance and the value of the inductance.b) Measure the effective voltage and current at the terminals of the 100 Ω resistor and at the source.c) Measure the average power delivered by the source.Note the phase shift between the supply voltage and the voltage across the 100 Ω resistor (only at this point).
An RLC series circuit connected to a 110 – volt and 50 – cycle AC source, contains the following series resistances and reactances: R1 = 10 ohm, R2 = 15, R3 = 5 ohms, XL1 = 20 ohms, XL2 = 25 ohms, XC = 40 ohms. Find the following: a.) EQUIVALENT REACTANCE b.) TOTAL IMPEDANCE c.) VOLTAGE DROP ACROSS THE CAPACITOR d.) TOTAL INDUCTANCE IN MILLIHENRY e.) TOTAL CURRENT f.) REACTIVE POWER g.) REAL POWER DRAW THE PHASOR DIAGRAM IF POSSIBLE AND ROUND OFF TO FOUR DECIMAL PLACES
(a) Considering pure inductance in an ac circuit element, show that the alternating current lags the voltage by ᴨ/2. (b) Derive the Norton equivalent network with respect to terminals PQ for the network shown in Figure below and hence determine the magnitude of the current flowing in a 2Ὡ resistor connected across PQ
A network is supplied by a 120 V rms, 60-Hz voltage source. An ammeter and a wattmeter indicate that 12 A rms is drawn from the source and 800 W are consumed by the network. Determine: a. The network power factor b. The network phase angle c. The network impedance d. The equivalent resistance and reactance of the network