Concept explainers
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.
Learn your wayIncludes step-by-step video
Chapter 8 Solutions
Tutorials in Introductory Physics
Additional Science Textbook Solutions
Lecture- Tutorials for Introductory Astronomy
Cosmic Perspective Fundamentals
Conceptual Physical Science (6th Edition)
University Physics with Modern Physics (14th Edition)
Physics for Scientists and Engineers with Modern Physics
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
- 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_forward30° Phasor at t Eoarrow_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_forward
- How do I solve the attached physics question about magnetic forces and fields?arrow_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_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_forward
- For 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_forwardboth parts plzarrow_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_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_forwardP-5 please help me with the below problem with step by step explanation clearly. Question - A 20-loop circular coil 20 cm in diameter lies in the x-y plane. The current in each loop of the coil is 7.6 A clockwise, and an external magnetic field B = (0.80i + 0.60j – 0.65k) T passes through the coil. Determine (a) the magnetic moment of the coil, m, (b) the torque on the coil due to the external magnetic field, (c) the potential energy U of the coil in the field (take the same zero for U as Giancoli in his discussion of Fig. 27-22)arrow_forward
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning