In each of the situations below a magnet is in motion with respect to a tationary coil. Which of the following scenarios will result in an emf between the ends of the coiled vire? (select all that apply) A B ? D top down view of coil E F locking at magnat end-on swings ? 00
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- Why does the induced current change direction when the magnet is halfway through? (Address what is happening to the magnetic flux and the direction of the induced magnetic field.) THank you for your helpIndicate the direction of the induced current in each loop by writing clockwise, counterclockwise, or none for each of the 2 pictures. Please also explain the steps you used to get there/the physics behind why/how you got to the answer to help me better understand. Thank you soo much.B6
- Ff the rate at which the current in a coil is doubled, how would its back EMF change?A current-carrying wire moves toward a coil A long straight wire carrying current I is moving with speed v toward a small circular coil of radiusr containing N turns, which is attached to a voltmeter as shown. The long wire is in the plane of the coil. (Only a small portion of the wire is shown in the diagram.) Voltmeter ?? N turns radius r The radius of the coil is 0.02 m, and the coil has 11 turns. At a particular instant I = 5 amperes, v = 2.8 meters per second, and the distance from the wire to the center of the coil x = 0.17 m. (a) What is the magnitude of the rate of change of the magnetic field inside the coil? You will need to calculate this algebraically before you can get a number. Write an expression for the magnetic field due to the wire at the location of the coil. Use the approximate formula, since the wire is very long. Remember the chain rule, and remember that v = dx/dt. dB/dt = T/s (b) What is the magnitude of the voltmeter reading? Remember that this includes all 11…Please help me with this question. Thanks!
- In the circuit shown in the figure below, let L = 3.10 H, R = 3.10 02, and E= 120 V. What is the self-induced emf 0.200 s after the switch is closed? V + Need Help? S R www Read It Watch ItPlease solve and answer the questions correctly. Thanks you!!A bar magnet moves away from a coil, as shown in the figure. What is the direction of the induced current in resistor ?? (from ? to ?, from ? to ? or zero)? Briefly explain.