Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8.2, Problem 2cT
Electric generator
Remove the battery and ammeter from circuit in part B and insert micro-ammeter as shown.
1. Suppose that the coil is made to spin by an external agent such as yourself.
Predict the deflection of the micro-ammeter needle throughout a complete revolution of the coil.
How would your prediction change if:
•the coil were made to rotate the other way?
•the poles of the magnet were reversed?
2. Check your predictions by gently rotating the coil so that it spins for a little time on its own before coming to a stop.
When the coil of the apparatus above is made to spin by an external agent, the apparatus is called an electric generator.
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule01:36
Students have asked these similar questions
2.
A hypothetical charge q with a mass m moves in a circular path perpendicular to a uniform magnetic field
with a magnitude of B and is directed into the page. If the speed of the hypothetical charge is v:
A. Determine the radius of the circular path.
B. Determine the time interval required to complete one revolution.
Pointing System for Number 2:
• What are the given in the problem?
• What are the unknown variables?
• What are the equations that you are going to use?
• Solution and answer for Part A.
Solution and answer for Part B.
Part A
Find the direction of the magnetic field at each of the indicated points.
What is the direction of the magnetic field BA at Point A?
• View Available Hint(s)
O BA is out of the page.
O BA is into the page.
O BA is neither out of nor into the page and BA +0.
BA = 0.
Submit
Figure
1 of 1
Part B
What is the direction of the magnetic field BB at Point B?
O BR İS out of the page.
A
O BR is into the page.
B
BB is neither out of nor into the page and BB +0.
BB = 0.
Submit
Request Answer
30°
Phasor at t
Eo
Chapter 8 Solutions
Tutorials in Introductory Physics
Ch. 8.1 - A copper wire loop is placed in a uniform magnetic...Ch. 8.1 - Suppose that the loop is now placed in the...Ch. 8.1 - In each of the diagram below, the position of a...Ch. 8.1 - D. State whether you agree or disagree with each...Ch. 8.1 - The diagram at right shows a stationary, copper...Ch. 8.1 - To understand the interaction between the wire...Ch. 8.1 - A wire loop moves from a region with no magnetic...Ch. 8.1 - At two later instants, t=t1andt=t1+t the loop is...Ch. 8.2 - The resistance of loop 2 is greater than that loop...Ch. 8.2 - Suppose that loop 2 were replaced by a wooden...
Additional Science Textbook Solutions
Find more solutions based on key concepts
At the instant shown in Figure 1, which direction is the star moving (circle one)?
Lecture- Tutorials for Introductory Astronomy
Choose the best answer to each of the following. Explain your reasoning. Which objects have the most elliptical...
Cosmic Perspective Fundamentals
108. You throw a ball straight upward. Compared with its initial speed when thrown, how fast does it return to ...
Conceptual Physical Science (6th Edition)
8.57 In Example 8.14 (Section 8.5), Ramon pulls on the rope to give himself a speed of 1.10 m/s. What is James’...
University Physics with Modern Physics (14th Edition)
(II) Suppose in Fig. 24–23 that C1 = C2 = C3 = 16.0 μF and C4 = 28.5 μF. If the charge on C2 is Q2 = 12.4 μC, d...
Physics for Scientists and Engineers with Modern Physics
19. A car starts from rest at a stop sign. It accelerates at 4.0 m/s2 for 6.0 s, coasts for 2.0s, and then slow...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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
- PLSS ANSWER WITHIN 8MINS An electric field of 185 x10-6 VIm is induced within the loop of long solenoid with cross sectional area of 3.18 cm2. The radius of the loop is 3.31 cm. Calculate the number of turns if the current in the winding is increasing at a rate of 87 A/s. • Final answer should be expressed in two (2) decimal places. Round up or down accordingly. • For the final answer, please write/include the unit, express you answer in "Turns"arrow_forwardShown in the figure below is a generator being used to power a resistor. The generator consists of a loop with 220 coils spinning at a frequency of 66 Hz in a magnetic field of 7.9e-03 Tesla. Each loop of the coil is shaped like a circle with a radius of 0.24 meters. The resistor has a resistance of 3.30 Ohms. N Loops R Radius B Tesla f Hz Generator Determine all the following! • The PEAK voltage produced by the generator, VPEAK = • The RMS voltage produced by the generator, VRMS = • The PEAK current, IPEAK = Amps Amps • The RMS current, IRMS = . • The average power dissipated by the resistor, P = Submit Answer R ww Volts Volts Watts MY NOTES ASK YOUR TEACHERarrow_forwardA long, vertical, metallic wire carries downward electric current. (i) What is the direction of the magnetic field it creates at a point 2 cm horizontally east of the center of the wire? (a) north (b) south (c) east (d) west (e) up (ii) What would be the direction of the field if the current consisted of positive charges moving downward instead of electrons moving upward? Choose from the same possibilities as in part (i).arrow_forward
- 2. A hypothetical charge -0.28pc with a mass 57fg moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 66mt and is directed into the page. If the speed of the hypothetical charge is 46km/s: A.) Determine the radius of the circular path. B.) Determine the time interval required to complete one revolution. • What are the given in the problem? • What are the unknown variables? • What are the equations that you are going to use? • Solution and answer for Part A. • Solution and answer for Part B.arrow_forwardFor all the following steps, the magnet was held with its axis parallel to the axis of the coil. 1. When I held the magnet stationary in the coil such that the axis of the magnet is aligned with the axis of the coil. Did you see any deflection in the Galvanometer? 2. I moved the north pole of the magnet into the coil at medium speed. Then I stopped moving the magnet but held it steady in the coil. Then I moved the magnet away from the coil at medium speed keeping the orientation the same. Observation: What was the magnitude and direction of the deflection at each instant?arrow_forwardFerromagnets and Electromagnets• Define ferromagnet.• Describe the role of magnetic domains in magnetization.• Explain the significance of the Curie temperature.• Describe the relationship between electricity and magnetism.arrow_forward
- Magnetic Fields and Magnetic Field Lines• Define magnetic field and describe the magnetic field lines of various magnetic fields.arrow_forwardPart A What is the total magnitude of the magnetic flux ( Pinitial) through the coils before they are rotated (in the original position where the plane of the loops are perpendicular to Earth's magnetic field)? Express your answer numerically in Webers. • View Available Hint(s) 8 Pinitial| = 9.25 • 10 Wb Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining You have calculated the flux through one turn of the coil, but the coil has 160 turns.arrow_forwardQUESTION 11 A point, B, is 1.8 meter away from a wire that carries a 93 A current in the indicated direction. The magnitude of the magnetic field at point B is T. Exponential format with 2 SF. • B QUESTION 12 What is the direction of the magnetic field at point B? A. to the left B. to the right C. out of the page D.into the pagearrow_forward
- Please answer all the questions correctly and in details. 1.Pleaseee EXPLAIN your answer why after you got the value of the resultant of the magnetic field at the centre of the coil. 2. SUGGEST the new condition for the resultant of the magnetic field at any point other than the point between first wire and second wire, to be zero and EXPLAIN YOUR ANSWER.arrow_forwardWhat are the magnetic field strength and direction at points 1,2, and 3 in the Figure. Show the details of your work. 1• |2.0 cm 10 A 2. 4.0 cm 10 A [2.0 cm 3.arrow_forwardConcept Check • You have a solenoid with a fixed number of turns connected to a power supply that can supply a fixed amount of current. • To double the field inside the solenoid, you can A. double the radius of the solenoid. B. halve the radius of the solenoid. C. double the length of the solenoid. D. halve the length of the solenoid.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
THE BAR MAGNET; Author: 7activestudio;https://www.youtube.com/watch?v=DWQfL5IJTaQ;License: Standard YouTube License, CC-BY