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?

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 ? Wh

A 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 | Constants

A 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 ? Wb

A 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?