Problem 1. AC Circuits-four short questions. (a) Explain the difference between instantaneous, peak, and RMS quantities, and give some examples of when it is appropriate to use each one. (b) For electrical power, (instantaneous) p is only true sometimes. Give a situation where it works, and a situation where it fails, and explain why it fails. = iv is always true, but (average) Pavg Irms Vrms (c) AC circuits gained prevalence over DC circuits for power distribution because of the ease of transforming between high and low voltage. Explain why a transformer (which uses magnetic induction between two coils of wire) works for AC but not for DC. (d) Suppose an electrical distribution line has a resistance of 1 ohm and needs to deliver 1 MW (megawatt) of electrical power. Is it more efficient to deliver that power at Vrms at Vrms question. (Hint: Actual distribution lines are high-voltage, so...) = 120 V or 120 kV? Calculate the power wasted as heat in the distribution line to answer the

Problem 1. AC Circuits-four short questions. (a) Explain the difference between instantaneous, peak, and RMS quantities, and give some examples of when it is appropriate to use each one. (b) For electrical power, (instantaneous) p is only true sometimes. Give a situation where it works, and a situation where it fails, and explain why it fails. = iv is always true, but (average) Pavg Irms Vrms (c) AC circuits gained prevalence over DC circuits for power distribution because of the ease of transforming between high and low voltage. Explain why a transformer (which uses magnetic induction between two coils of wire) works for AC but not for DC. (d) Suppose an electrical distribution line has a resistance of 1 ohm and needs to deliver 1 MW (megawatt) of electrical power. Is it more efficient to deliver that power at Vrms at Vrms question. (Hint: Actual distribution lines are high-voltage, so...) = 120 V or 120 kV? Calculate the power wasted as heat in the distribution line to answer the

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter33: Inductors And Ac Circuits

Section: Chapter Questions

Problem 36PQ

See similar textbooks

Related questions

Q: A 200 Q resistor is connected in series with a 4.00 µF capacitor and an ac source. The voltage…

Q: What is the RMS current in milliamps (mA) in a series circuit with a resistor R = 200 2, an inductor…

Q: An AC power generator produces 20 A (rms) at 400 V. The voltage is stepped up down 120V by an ideal…

Q: Write a report to compare between Ac Through capacitance and AC through in inductance then: For the…

Q: In the simple AC circuit shown on the right, the impedance is Z = 150 Ω and the current is I =…

Q: A 54.0-uF capacitor is connected to a 46.0-2 resistor and a generator whose rms output is 30.0 V at…

Q: In your lab experiment, you deduced that as the AC source frequency increases in an RC in series,…

A: Given : reactance of capacitor is given as where, f is the frequency of AC source and C is the…

Q: Soles of boots that are designed to protect workers from electric shock are rated to pass a maximum…

Q: A 29.0 kA resistor connected to an AC voltage source dissipates an average power of 0.680 W. HINT…

A: (a) the power dissipated is, P=I2R⇒I=PR=0.680 W29.0×103 Ω=0.005 A

Q: The instantaneous voltage of an AC sine wave is 480 volts at 90 degrees. What is the instantaneous…

Q: 1. A series RLC circuit with R= 15 0, C= 4.72 µF and L=25.3 mH the AC power supply is providing 75 V…

Q: Can you measure power in an ac circuit by using an ammeter and voltmeter? If No, why? If yes, how?…

A: D.C voltmeter and ammeter are based on the magnetic effect of current . It reads the average value…

Q: A 500 N resistor and a 300 mH inductor are connected in series with an ac generator with an rms…

A: Given, R = 500 ohm L = 300 mH = 300 x 10-3 H Vrms = 17.0 V f = 65.0 Hz As we know that, in…

Q: Calculate the rms currents for an ac source given by v(t) = Vo sin(wt), where Vo = 160 V and w 340T…

Q: 2, Five infinite-impedance voltmeters, calibrated to read rms values, are connected as shown below.…

A: The capacitive reactance,

Q: - The Q factor of a resonant ac circuit (Section 21–15) can be defined as the ratio of the voltage…

A: (a) Explanation: Write the expression for the reactance of the inductor. XL=2πfresL Write the…

Q: A 28.5 k2 resistor connected to an AC voltage source dissipates an average power of 0.515 W. HINT…

Q: Question 2 You have a resistor R = 51.0 2, an inductor L= 2.31 mH, and an AC generator. What value…

Q: Consider the AC circuit as shown. The frequency of the AC source is adjusted while its voltage…

Q: A person is working near the secondary of a transformer, asshown in Figure P21.25. The primary…

Q: In the simple AC circuit shown on the right, the impedance is Z = 550 Ω and the current is I =…

Q: Consider the RLC series circuit with a peak voltage of 40 V, f = 60 Hz, R = 10 Q, L = 1.2 mH, C =…

Q: In an AC circuit containing a resistance load only: a. Does the current reach its maximum peak value…

Q: In an L-R-C series circuit, what criteria could be used to decide whether the system is overdamped…

A: An underdamped system moves quickly as compared to the overdamped system. The criteria of resistance…

Q: Which of the following 120 V ac device costs more to operate: (a) One that draws an rms current of…

Q: The following is the stereotypical RLC AC circuit. The voltage source is E(t) = E, cos(wt + ¢). In…

Q: alculate rms value of volatge across AC source given that amplitude is 150V

A: Given: The amplitude of the voltage is 150 V.

Q: Consider the AC circuit as shown. The frequency of the AC source is adjusted while its voltage…

A: It is given that the frequency of the AC source is adjusted while its voltage amplitude is held…

Q: The circuit below shows an AC power supply connected to a resistor R = 28.09. AV. R WWW V max V The…

Q: The following is the stereotypical RLC AC circuit. The voltage source is E(t) = E, cos(wt + ¢). In…

Q: You have a resistor R = 43.0 2, a capacitor C = 0.334 µF, and an AC generator. What value of…

Q: An AC power source produces a 170 V peak emf at 70 Hz. How do you determine the average power…

Q: eertain series RLC circult, rms rms (a) What is the total resistance (in 0) of the circuit? 14.74…

A: Given that, RMS current, Irms=9 A RMS voltage, ∆Vrms=155 V The current leads the voltage by 31.0°.

Q: Q4(a) An alternating voltage is given by the equation v(t) Calculate the peak voltage, phase…

Q: In the simple AC circuit shown on the right, the impedance is Z = 350 Ω and the current is I =…

Concept explainers

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.

Question

Can you answer question D in this image?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

In an ideal AC circuit with capacitance, there is no resistance. Is any energy dissipated? How about in a real AC circuit with capacitance?
Calculate the rms currents for an ac source is given by v(t)=v0sint , where V0=100V and =200rad/s when connected across (a) a 20F capacitor, (b) a 20-mH inductor, and (c) a 50 resistor.
Can the instantaneous power output of an ac source ever be negative? Can the average power output be negative?
An AC generator with an output rms voltage of 36.0 V at a frequency of 60.0 Hz is connected across a 12.0-F capacitor. Find the (a) capacitive reactance, (b) rms current, and (c) maximum current in the circuit. (d) Does the capacitor have its maximum charge when the current takes its maximum value? Explain.
Check Your Understanding Show that the tins voltages across a resistor, a capacitor, and an inductor in an ac circuit where the tins current is Irmsare given by IrmsR,IrmsXC , and IrmsXL, respectively. Determine these values for the components of the RLC circuit of Equation 15.12. Pave=12t0v0cos (15.12)
The emf of an ac source is given by v(t)=v0sint. where V0=100V and at =200rad/s . Calculate the average power output of the source if it is connected across (a) a 20F capacitor, (b) a 20-mH inductor, and (c) a 50 resistor.
An ac source of voltage amplitude 100 V and variable frequency f drives an RLC series circuit with R=10 , L = 2.0 mH, and C=25F (a) Plot the canal through the resistor as a function of the frequency f. (b) Use the plot to determine the resonant frequency of the circuit.
A 40-mH inductor is connected to a 60-Hz AC source whose voltage amplitude is 50 V. If an AC voltmeter is placed across the inductor, what does it read?
In Figure P33.71, find the rms current delivered by the 45.0-V (rms) power supply when (a) the frequency is very large and (b) the frequency is very small.
The power rating of a resistor used in ac circuits refers to the maximum average power dissipated in the resistor. How does this compare with the maximum instantaneous power dissipated in the resistor?
An AC generator with an output rms voltage of 36.0 V at a frequency of 60.0 Hz is connected across a 12.0-F capacitor. Find the (a) capacitive reactance, (b) rms current, and (c) maximum current in the circuit. (d) Does the capacitor have its maximum charge when the current takes its maximum value? Explain.
A 20-mH inductor is connected across an AC source with a variable frequency and a constant-voltage amplitude of 9.0 V. (a) Determine the reactance of the circuit and the maximum current through the inductor when the frequency Is set at 20 kHz. (b) Do the same calculations for a frequency of 60 Hz.