Part A An 1200-turn coil of wire that is 2.3 cm in diameter is in a magnetic field that drops from 0.15 T to 0 T in 12 ms. The axis of the coil is parallel to the field. What is the emf of the coil? Express your answer in volts. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. E = V

Part A An 1200-turn coil of wire that is 2.3 cm in diameter is in a magnetic field that drops from 0.15 T to 0 T in 12 ms. The axis of the coil is parallel to the field. What is the emf of the coil? Express your answer in volts. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. E = V

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Microphones are used to convert sound vibrations to electrical signals. In one kind of microphone, sound waves move a coil of wire up and down in a magnetic field, as shown in (Figure 1). The coil shown has a diameter of 1.6 cm and has 100 turns; the 0.010 T magnetic field points radially out from the north pole to the south. Figure S N Wire coil 1 of 1 Part A If the microphone's emf at some instant is 10 mV, what is the speed of the coil? Express your answer with the appropriate units. V = Value Submit μÃ Provide Feedback Request Answer Units www ?
A fixed 19.6-cm-diameter wire coil is perpendicular to a magnetic field 0.58 T pointing up. In 0.23 s, the field is changed to 0.24 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. HÅ ? E = Value Units
- Part A How much energy is stored in a 2.60-cm-diameter, 14.0-cm-long solenoid that has 190 turns of wire and carries a current of 0.790 A? Express your answer with the appropriate units. UL = 2.82 Submit μA J Previous Answers Request Answer ? X Incorrect; Try Again; One attempt remaining
A small circular coil of 20 loops of wire having a radius of 1 cm is at rest in the X-y plane (so the normal to the loop points in the +z-direction). A uniform magnetic field of 0.5 T is turned on in the +x-direction. What is the magnetic flux through the loop? a. 7.85 x 10 Tm² b. 1.57 x 10 4 T m² O c. 3.14 x 10 3 T m2 O d. 0 T m2
Part A You want to build a generator for a multi-day canoe trip. You have a fairly large permanent magnet, some wire, and a lightbulb. You may build it as follows. Wind the wire for about 200 turns into a coil of Suppose we need 6.0 V to light the bulb (the peak voltage). What is the required rotational speed? 15 cm radius. Tape up the coil and place it in the region between the poles of the magnet that produces a 0.10 T magnetic field. Connect a hand crank to the coil and rotate it at a rotational speed w. Express your answer with the appropriate units. HÀ W = Value Units Submit Request Answer Provide Feedback
A coil has 200 turns enclosing an area of 10.8 cm² . In a physics laboratory experiment, the coil is rotated during the time interval 0.036 s from a position in which the plane of each turn is perpendicular to Earth's magnetic field to one in which the plane of each turn is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.00×10-5 T. Part A What is the magnitude of the magnetic flux through one turn of the coil before it is rotated? Express your answer in webers. ► View Available Hint(s) | Þinitial Submit —| ΑΣΦ Part B xa Xb 7 √x V x 2.0.10 5 Previous Answers X <४ |X| ? X.10n X www Wb X Incorrect; Try Again; 2 attempts remaining The angle between the magnetic field and the area vector of the coil is either 0 or 180 degrees. Note that you can choose to view the coil from either side, as long as you stick to using the same side for the entire calculation/experiment. This gives a factor of ±1 in the formula for flux. What is the magnitude of the…
Part A A 14 cm-diameter circular loop of wire is placed in a 1.28 T magnetic field. When the planc of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? Express your answer to two significant figures and include the appropriate units HA Value Units Submit Request Answer Part B The plane of the loop is rotated until it makes a 45 ° angle with the field lines. What is the angle in the equation Pg = BA cos e for this situation? Express your answer using two significant figures. 0 = Submit Request Answer Deersen
A shunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, R, is 208 n. The resistance of the rotor, R. is 4.90 n. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.46 A from the line. Friction losses amount to 45.0 W Part A Compute the field current Ir. Express your answer in amperes. • View Available Hint(s) Temglates Symbols undo regdo Tesel keyboard shortcuts Help A I = 0.56 Submit Prevlous Anewere X Incorrect, Try Again; 4 attempts remaining Part B Compute the rotor current I > View Available Hint(s) Figure 1 of 1 Templates Symbols undo redo Teset keyboard shortcuts Help A. I = 4,26 Submit Prevlous Answers X Incorrect; Try Again; 5 attempts remaining R ER. Part C Compute the emf E.
A single loop of wire with an area of 0.0680 m? is in a uniform magnetic field that has an initial value of 3.80 T, is perpendicular to the plane of the loop, and is decreasing at a constant rate of 0.210 T/s. Part A You may want to review (Page). What emf is induced in this loop? For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Emf and current induced in a loop. Express your answer in volts. lel = V Submit Request Answer Part B If the loop has a resistance of 0.750 N, find the current induced in the loop. Express your answer in amperes. I= A Submit Request Answer
fiexible loop of metal wire with a radius of 14.0 cm. It lies in a magnetic field pointing into the page with a magnitude of 0.190 T. A student grabs the loop at points A and B and rap The figure below shows pulls in opposite directions until the loop folds up, such that its area becomes zera. The change area occurs in a span of 0.150 s. B What is the average induced emf (in mV) in the loop over this time span?
Two long, parallel wires are separated by a distance of 2.70 cm. The force per unit length that each wire exerts on the other is 3.70x10-5 N/m, and the wires repel each other. The current in one wire is 0.680 A. Part A What is the current in the second wire? Express your answer in amperes. ΑΦ ? I = A Submit Request Answer Part B Are the two currents in the same direction or in opposite directions? In the same direction In opposite direction Submit Request Answer
Part A How much energy is stored in a 2.60-cm-diameter, 14.0-cm-long solenoid that has 190 turns of wire and carries a current of 0.790 A? Express your answer with the appropriate units. UL = Submit μA Value Request Answer Ć Units ?