There is a constant magnetic field directed into the page in the shaded region. The field is zero outside the shaded region. A copper ring slides through the region. For each of the five positions, determine whether an induced current exists and, if so, find its direction.
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Q: Magnetic Field (into the page) What direction is the induced Magnetic Field within the closed loop?
A: Given: At t = 1.0 s Magnetic field (B) = 12.0 T At t = 4.0 s B = 2.0 T
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- A uniform magnetic field of magnitude 0.70 T is directed perpendicular to the plane of a rectangular loop having dimensions 7.8 cm by 11 cm. Find the magnetic flux through the loop.A horizontal wire is free to slide on the vertical rails of a conducting frame, as in the figure. The wire has a mass (m) and length (l), and the resistance of the circuit is R. a) If a uniform magnetic field is directed perpendicularly to the frame, out of the paper, what is the the terminal (final) speed of the wire as it falls under the force of gravity? (Neglect friction) b) Is the current in the wire from A to B or B to A? [Explain your answer]A rectangular conducting loop has sides a = 0.065 m, sides b = 0.15 m, and resistance R = 55 Ω. It moves into a magnetic field of magnitude B = 0.81 T with speed v = 5.5 m/s. Refer to the diagram. A) Find the current, Ii, in amperes, flowing in the loop as it enters the magnetic field. B) Find the current, If, in amperes, in the loop as it leaves the magnetic field. It leaves at the same speed it enters.
- A jet airplane with a 75.0 m wingspan is flying at 270 m/s. What emf is induced between the wing tips in V if the vertical component of the Earth’s magnetic field is 3.00 × 10-5 T?A conductive rectangular loop is being pulled at constant speed v out of a region of uniform magnetic field that is going into the page as shown in the image. What is the direction of the induced current in the loop when half of the area of the loop is still in the field?A conducting coil of 2100 turns is connected to a galvanometer, and the total resistance of the circuit is 30 2. The area of each turn is 5.25 x 10-4 m2. This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 8.5 × 10´³C. Find the magnitude of the magnetic field. Number i Units
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- A uniform magnetic field of magnitude 0.50 T is directed perpendicular to the plane of a rectangular loop having dimensions 8.0 cm by 12 cm. Find the magnetic flux through the loop.A conducting loop has an area of 280 cm² and resistance 15 . It is perpendicular to a spatially uniform magnetic field and carries a 350 mA of induced current. At what rate is the magnetic field changing?In Figure (a), a circular loop of wire is concentric with a solenoid and lies in a plane perpendicular to the solenoid's central axis.The loop has radius 6.14 cm. The solenoid has radius 2.20 cm, consists of 8180 turns/m, and has a current isol varying with time t as given in Figure (b), where the vertical axis scale is set by is = 1.28 A and the horizontal axis scale is set by ts = 3.7 s. Figure (c) shows, as a function of time, the energy Eth that is transferred to thermal energy of the loop; the vertical axis scale is set by Es = 101.6 nJ. What is the loop's resistance?