Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 32, Problem 50PQ
To determine
Whether the light in the room flicker or not.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Ignoring air resistance and the little friction from the plastic tube, the magnet was a freely-falling object in each trial. If a freely-falling object is traveling twice as fast after it has fallen 40 m than after falling 10 m, what do you predict the maximum emf would be if you drop the magnet through the same coil from a height of 40 cm?
40 cm would have a lower emf value than 40 m. How?
Please explain in terms of Faraday's law or any other applicable equations. Is there a relationship between variables?
A motor vehicle generates electrical power using an alternator,which employs electromagnetic induction to convert mechanicalenergy to electrical energy. The alternator acts as a dc generator. The alternator maintains and replenishes charge on thecar’s battery and operates headlights, radiator fans, windshield wipers,power windows, computer systems, sensors, sound systems, and othercomponents A car’s alternator supplies an average emf of 14 V as emf induced in a sequence of stator coils in the presence of a magnetic field created by rotor coil electromagnets turned by a pulley system. A stator coil may have 42 windings and a cross-sectional diameter of 5.0 cm, and it rotates at 400 Hz. Estimate the strength of the magnetic field generated by a rotor coil.
12. You perform experiments using an apparatus that has two insulated wires wrapped
around a cardboard tube (Figure P21.3). Determine the direction of the current in the
bulb when (a) the switch is closing and the current in coil A is increasing, (b) the switch
has just closed and there is a steady current in coil A, and (c) the switch has just opened
and the current in coil A is decreasing.
Figure P21.3
Circuit A
Coil A
a
Coil B
b
Chapter 32 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 32.1 - To calculate the magnetic flux through the...Ch. 32.2 - Prob. 32.2CECh. 32.3 - Prob. 32.3CECh. 32.3 - Prob. 32.4CECh. 32.4 - Prob. 32.5CECh. 32.5 - Prob. 32.6CECh. 32.6 - Prob. 32.7CECh. 32.8 - Prob. 32.8CECh. 32.8 - Prob. 32.9CECh. 32 - A constant magnetic field of 0.275 T points...
Ch. 32 - Prob. 2PQCh. 32 - Prob. 3PQCh. 32 - Prob. 4PQCh. 32 - Prob. 5PQCh. 32 - Figure P32.6 shows three situations involving a...Ch. 32 - A rectangular loop of length L and width W is...Ch. 32 - The magnetic field through a square loop of wire...Ch. 32 - Prob. 9PQCh. 32 - Prob. 10PQCh. 32 - Suppose a uniform magnetic field is perpendicular...Ch. 32 - Prob. 12PQCh. 32 - A square conducting loop with side length a = 1.25...Ch. 32 - A The magnetic field in a region of space is given...Ch. 32 - A The magnetic field in a region of space is given...Ch. 32 - Prob. 16PQCh. 32 - Prob. 17PQCh. 32 - Prob. 18PQCh. 32 - A square loop with side length 5.00 cm is on a...Ch. 32 - A thin copper rod of length L rotates with...Ch. 32 - Figure P32.21 shows a circular conducting loop...Ch. 32 - Prob. 22PQCh. 32 - A square loop with side length L, mass M, and...Ch. 32 - Prob. 24PQCh. 32 - Prob. 25PQCh. 32 - Prob. 26PQCh. 32 - Prob. 27PQCh. 32 - A solenoid of area Asol produces a uniform...Ch. 32 - Two circular conductors are perpendicular to each...Ch. 32 - Two circular conducting loops labeled A and B are...Ch. 32 - Prob. 31PQCh. 32 - Prob. 32PQCh. 32 - Prob. 33PQCh. 32 - Prob. 34PQCh. 32 - Prob. 35PQCh. 32 - Find an expression for the current in the slide...Ch. 32 - The slide generator in Figure 32.14 (page 1020) is...Ch. 32 - Prob. 38PQCh. 32 - A thin conducting bar (60.0 cm long) aligned in...Ch. 32 - A stiff spring with a spring constant of 1200.0...Ch. 32 - A generator spinning at a rate of 1.20 103...Ch. 32 - Suppose you have a simple homemade AC generator...Ch. 32 - Prob. 43PQCh. 32 - Prob. 44PQCh. 32 - Prob. 45PQCh. 32 - Prob. 46PQCh. 32 - A square coil with a side length of 12.0 cm and 34...Ch. 32 - Prob. 48PQCh. 32 - Prob. 49PQCh. 32 - Prob. 50PQCh. 32 - Prob. 51PQCh. 32 - Prob. 52PQCh. 32 - Prob. 53PQCh. 32 - Prob. 54PQCh. 32 - Prob. 55PQCh. 32 - Prob. 56PQCh. 32 - Prob. 57PQCh. 32 - A step-down transformer has 65 turns in its...Ch. 32 - Prob. 59PQCh. 32 - Prob. 60PQCh. 32 - Prob. 61PQCh. 32 - Prob. 62PQCh. 32 - Prob. 63PQCh. 32 - A bar magnet is dropped through a loop of wire as...Ch. 32 - Prob. 65PQCh. 32 - Prob. 66PQCh. 32 - A circular coil with 75 turns and radius 12.0 cm...Ch. 32 - Each of the three situations in Figure P32.68...Ch. 32 - A square loop with sides 1.0 m in length is placed...Ch. 32 - Prob. 70PQCh. 32 - Two frictionless conducting rails separated by l =...Ch. 32 - Imagine a glorious day after youve finished...Ch. 32 - Prob. 73PQCh. 32 - A Figure P32.74 shows an N-turn rectangular coil...Ch. 32 - A rectangular conducting loop with dimensions w =...Ch. 32 - Prob. 76PQCh. 32 - A conducting rod is pulled with constant speed v...Ch. 32 - Prob. 78PQCh. 32 - A conducting single-turn circular loop with a...Ch. 32 - A metal rod of mass M and length L is pivoted...
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
- Figure CQ20.7 shows a slidewire generator with motional cmf 0 when the wire at A slides across the top and bottom rails at constant velocity v0. (a) When the wire reaches B so that the area enclosed by the circuit is doubled, determine the ratio of the new cmf to the original cmf, /0. (b) If the wire's speed is doubled so that v = 2v0 determine the ratio /0. Figure CQ20.7arrow_forward(a) What is the voltage output of a transformer used for rechargeable flashlight batteries, if its primary has 500 turns, its secondary 4 turns, and the input voltage is 120 V? (b) What input current is required to produce a 4.00 A output? (c) What is the power input?arrow_forwardFigure CQ20.7 shows a slidewire generator with motional cmf 0 when the wire at A slides across the top and bottom rails at constant velocity v0. (a) When the wire reaches B so that the area enclosed by the circuit is doubled, determine the ratio of the new cmf to the original cmf, /0. (b) If the wire's speed is doubled so that v = 2v0 determine the ratio /0. Figure CQ20.7arrow_forward
- The 335-kV ac electricity from a power transmission line is fed into the primary winding of a transformer. The ratio of the number of turns in the secondary winding to the number in the primary winding is Ns/Np=100 . (a) What voltage is induced in the secondary winding? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible?arrow_forwardHere you see the circuit board that I passed around in class one day, the control board from my microwave oven. The large white square with the red and green coils is a power transformer that takes in 120 volts AC and produces 24 volts AC to operate the circuits. Suppose there are 50 loops of wire in the red secondary coil. How many loops would you expect in the green primary coil?arrow_forwardAn AC generator consists of a 20.0-cm by 10.0-cm rectangular conducting frame with 300 turns rotating in a uniform magnetic field of strength 6.0 T that is produced by the pole faces of a magnet. (See the diagram below.) What is the maximum voltage generated in the conducting frame if the frame rotates at 60 Hz? a. 9.60 kvolts b. 7.60 kvolts c. 11.6 kvolts d. 13.6 kvolts e. 15.6 kvoltsarrow_forward
- A generator has a 130-turn square coil, 6 cm on a side. Find the peak emf in this coil when it's rotating at 100 Hz in Earth's field. B - 5 x 10^-5 T. I don't understand the derivations or symbology used, so it is difficult to understand. For example NBA, times the W sin (wt). I am going bonkers.arrow_forwardTwo coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A current of 5.3 A in one is switched off in 0.8 ms, inducing a 10 V emf in the other. What is their mutual inductance?arrow_forwardWe have two circuits, A and B. In circuit A, a lamp is connected to a 12 V battery. In circuit B, the same lamp is connected in series to an inductor and a 12 V battery. If we close these two circuits at the same time, which lamp will reach its maximum intensity (brighter) first? Explain.arrow_forward
- Exp. No. Stator Voltage Control of an Induction Motor using PWM The objective: The objective of this experiment is to present the voltage control of induction motor. The theory: Stator Voltage Control is a method used to control the speed of Fan laad an Induction Motor. The speed of a three phase induction motor can be varied by varying the supply voltage. n na n Speed n As we already know that the torque developed is proportional to the square of the supply voltage and the slip at the maximum torque is independent of the supply voltage. The variation in the supply voltage does not alter the synchronous speed of the motor. Soo Procedure: 1. Using Matlab-Simulink, connect the circuit shown above, Connect the circuit shown above with Vdc=400V and Tm=10N.m. 2. To control the IGBTS, a PWM, 6-pulse and three arms will be used. 3. Let the carrier frequency = 2kHz. 4. Let the modulation index inside the PWM = m in order to vary it from the command window of Matlab. 5. Vary the modulation…arrow_forwardHere you see the circuit board that I passed around in class one day, the control board from my microwave oven. The large white square with the red and green coils is a power transformer that takes in 120 volts AC and produces 24 volts AC to operate the circuits. Suppose there are 50 loops of wire in the red secondary coil. On that same circuit, to the left, you see three small capacitors, standing upright with shiny tops. Each of them has a rated capacitance of 10 μF, but an actual capacitance of 9.91 μF. What is its capacitive reactance, Xc, in ohms, at 60.0 Hz? Express your answer rounded to the nearest whole number.arrow_forwardA capacitor with capacitance of 6.5 x 10-5 F is charged by connecting it to a 12.0-V battery. The capacitor is disconnected from the battery and connected across an inductor with L = 1.50 H. What are the frequency and the period of these oscillations (the time for one oscillation)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College