Q3) Choose the correct answer (answer only ten)1) The value normally stated when referring to alternating currents and voltages is the:(a) instantaneous value(b) r.m.s. value (c) average valued) peak value2) An alternating current completes 100 cycles in 0.1 s. Its frequency is:(a) 20 Hz(b) 100 Hz(c) 0.002 Hz(d) 1 kHz3) State which of the following is false. For a sine wave:(a) the peak factor is 1.414(c) the average value is 0.637 x r.m.s. value(b) the r.m.s. value is 0.707 x peak value(d) the form factor is 1.114) An inductance of 10 mH connected across a 100 V, 50 Hz supply has an inductive reactance of(a) 10 π Ω(b) 1000 π Ω(c) ΠΩ(d) π Η5) When the frequency of an a.c. circuit containing resistance and inductance is increased, thecurrent(a) decreases(b) increases(c) stays the same6) When the frequency of an a.c. circuit containing resistance and capacitance is decreased, thecurrent(a) decreases(b) increases(c) stays the same7) In a series a.c. circuit the voltage across a pure inductance is 12 V and the voltage across a pureresistance is 5 V. The supply voltage is(a) 13 V(b) 17 V(c) 7 V(d) 2.4 V8) The impedance of a coil, which has a resistance of X ohms and an inductance of Y henrys,connected across a supply of frequency K Hz, is(a) 2π Κ Υ (b) X + Y(c) √x² + y²(d) √X² + (2лKY)²9) When a capacitor is connected to an a.c. supply the current(a) leads the voltage by 180°(c) leads the voltage by π/2 rad(b) is in phase with the voltage(d) lags the voltage by 90°10) In an R-L-C series a.c. circuit a current of 5 A flows when the supply voltage is 100 V. Thephase angle between current and voltage is 60° lagging. Which of the following statements isfalse?(a) The circuit is effectively inductive(c) The equivalent circuit reactance is 25 2(b) The apparent power is 500 VA(d) The true power is 250 W11) An a.c. supply is 70.7 V, 50 Hz. Which of the following statements is false?(a) The periodic time is 20 ms.(b) The peak value of the voltage is 70.7 V(c) The r.m.s. value of the voltage is 70.7 V(d) The peak value of the voltage is 100 V12) When the frequency of an a.c. circuit containing resistance and capacitance is increased theimpedance(a) increases(b) decreases(c) stays the same

In this question we will write answers related to alternating quantities.... Note :- as per our…

Q3) Choose the correct answer (answer only ten) 1) The value normally stated when referring to alternating currents and voltages is (a) instantaneous value (b) r.m.s. value (c) average value d) peak 2) An alternating current completes 100 cycles in 0.1 s. Its frequency is: (a) 20 Hz (b) 100 Hz (c) 0.002 Hz (d) 1 kHz 3) State which of the following is false. For a sine wave: (a) the peak factor is 1.414 (b) the r.m.s. value is 0.70 (d) the form factor is 1.11 (c) the average value is 0.637 x r.m.s. value 4) An inductance of 10 mH connected across a 100 V, 50 Hz supply has an inducti (a) 10 πΩ (b) 1000 π Ω (c) ΠΩ (d) π Η 5) When the frequency of an a.c. circuit containing resistance and inductance is current (a) decreases (b) increases (c) stays the same 6) When the frequency of an a.c. circuit containing resistance and capacitance current

Q3) Choose the correct answer (answer only ten) 1) The value normally stated when referring to alternating currents and voltages is (a) instantaneous value (b) r.m.s. value (c) average value d) peak 2) An alternating current completes 100 cycles in 0.1 s. Its frequency is: (a) 20 Hz (b) 100 Hz (c) 0.002 Hz (d) 1 kHz 3) State which of the following is false. For a sine wave: (a) the peak factor is 1.414 (b) the r.m.s. value is 0.70 (d) the form factor is 1.11 (c) the average value is 0.637 x r.m.s. value 4) An inductance of 10 mH connected across a 100 V, 50 Hz supply has an inducti (a) 10 πΩ (b) 1000 π Ω (c) ΠΩ (d) π Η 5) When the frequency of an a.c. circuit containing resistance and inductance is current (a) decreases (b) increases (c) stays the same 6) When the frequency of an a.c. circuit containing resistance and capacitance current

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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