The loop in (Figure 1) is being pushed into the 0.10 T magnetic field at 25 m/s . The resistance of the loop is 0.10 2. Part A What is the magnitude of the current in the loop?
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magnetic field at 25 m/s . The resistance of the loop is
0.10 N.
Part A
What is the magnitude of the current in the loop?
Express your answer with the appropriate units.
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?
Value
Units
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Part B
Figure
1 of 1
What is the direction of the current in the loop?
V
clockwise
В
counterclockwise
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- 10. A square loop with sides of length a has a current I flowing in it as shown. A. What is the direction of the magnetic field due to this current, at the center of the loop? B. Set up an integral to find the magnetic field at the center of the loop. The integral should be in a form that is ready to integrate, but you don't have to do the integration. I aPart A The circuit of (Eigure 1) is a square 30 cm on a side. The magnetic field increases steadily from C T to 0 70 T in 13 ms. What is the current in the resıstor during this time? For the steps and strategies involved in solving a similar problem you may view a Video Tutor Solution Express your answer with the appropriate units. HA ? Submit Request Answet Figure 1 of 1 Prov de Feedback 20 N 9.0 VA coil 4.35 cm radius, containing 460 turns, is placed in a uniform magnetic field that varies with time according to B=( 1.20x10-2 T/s)t+( 2.60x10-5 T/s4 )t¹. The coil is connected to a 580- resistor, and its plane is perpendicular to the magnetic field. You can ignore the resistance of the coil. Part B What is the current in the resistor at time to = 5.50 s ? V ΑΣΦ ? NII = A
- To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 8.9 cm in diameter and 45 cm in length. You would like a 3.2 AA current to produce a 2.6 kGkG magnetic field inside your solenoid. Part A What is the total length of wire you will need to meet these specifications? Express your answer using two significant figures.The moving rod in the figure is 13.5 cm long and is pulled at a speed of 16.0 cm/s. Force on electron a) If the magnetic field is 0.790 T, calculate the emf developed. Express your answer to three significant figures and include appropriate units. b) Calculate the magnitude of the electric field felt by the electron rod. Express your answer to three significant figures and include appropriate units. c) Determine the direction of the electric field felt by electrons in the rod. Express your answer as either: up, right, down, or left.1. What is the magnetic field at P due to the current I in the wire shown? b. Write your answer in terms of 'µo', 'l', 'a', and 'b'. Remember to put a multiplication sign between variables. B=
- In a physics laboratory experiment, a coil with 200 turns enclosing an area of 14.0 cm² is rotated during the time interval 3.90×10-2 s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 5.50x10-5 T. Part A What is the magnitude of the magnetic flux (initial) through the coil before it is rotated? Express your answer numerically, in webers, to at least three significant figures. ► View Available Hint(s) | ΑΣΦ |Pinitial = 0 Submit X Incorrect; Try Again; 4 attempts remaining Part B final Submit Previous Answers What is the magnitude of the magnetic flux final through the coil after it is rotated? Express your answer numerically, in webers, to at least three significant figures. ► View Available Hint(s) Part C = 0 Wb Correct Submit Previous Answers average induced emf = Provide Feedback What is the magnitude of the average emf induced in the coil?…▼ Part A Suppose you have a magnetic field with a strongth of 45 uT directed along the m-axis. If a 34 cm x 50 cm wire loop is placed at a 60-degree angle to the z axis before being shifted to a 30-degree angle to the z-axis. what is the difforonce in flux within the loop? Note: 1 Wb= T m². Express your answer in webers. Γ.Γ ΑΣΦ 30-60 2.80.10 6 → C Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining ? WhA simple generator has a square armature 9.0 cm on a side. The armature has 95 turns of 0.59-mm-diameter copper wire and rotates in a 0.800-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W. Part A At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature.
- In a physics laboratory experiment, a coil with 250 turns enclosing an area of 12.9 cm² is rotated during the time interval 4.80×10-² s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 5.40x10-5 T. Part A What is the magnitude of the magnetic flux (initial) through the coil before it is rotated? Express your answer numerically, in webers, to at least three significant figures. ► View Available Hint(s) ΟΙ ΑΣΦ |Pinitial | = Submit Part B |Pfinal Submit What is the magnitude of the magnetic flux final through the coil after it is rotated? Express your answer numerically, in webers, to at least three significant figures. ► View Available Hint(s) VG ΑΣΦ = = w ? Wb ? Wb Review | ConstantsA coil has 180 turns enclosing an area of 10.4 cm². In a physics laboratory experiment, the coil is rotated during the time interval 0.046 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 5.00×10-5 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) initial Submit Part B |final = = Submit —| ΑΣΦ = What is the magnitude of the magnetic flux through one turn of the coil after it is rotated? Express your answer in webers. ► View Available Hint(s) ΠΙ ΑΣΦ ? Wb ? WbA 550-turn solenoid is 12 cm long. The current in it is 38 A . A straight wire cuts through the center of the solenoid, along a 5.0-cm diameter. This wire carries a 23-A current downward (and is connected by other wires that don't concern us). Part A What is the force on this wire assuming the solenoid's field points due east?