An ?=45.0 cm wire is moving to the right at a speed of ?=7.90 m/s across two parallel wire rails that are connected on the left side, as shown in the figure. The whole apparatus is immersed in a uniform magnetic field that has a magnitude of ?=0.910 T and is directed into the screen. What is the emf  induced in the wire?

An L = 47.0 ncm wire is moving to the right at a speed of v = 6.50 m/s across two parallel wire rails that are connected on the left side, as shown in the figure. The whole apparatus is immersed in a uniform magnetic field that has a magnitude of B = 0.910 T and is directed into the screen. What is the emf induced in the wire? If the moving wire and the rails have a combined total resistance of 1.15 Ohms, what applied force would be required to keep the wire moving at the given velocity? Assume that there is no friction between the moving wire and the rails.

An L=57.0 cm wire is moving to the right at a speed of v=7.50 m/s across two parallel wire rails that are connected on the left side, as shown in the figure. The whole apparatus is immersed in a uniform magnetic field that has a magnitude of B=0.930 T and is directed into the screen. What is the emf E induced in the wire?   If the moving wire and the rails have a combined total resistance of 1.75 Ω, what applied force F would be required to keep the wire moving at the given velocity? Assume that there is no friction between the moving wire and the rails.

A square loop made of a metal wire is placed on the page. The length of both sides of the square decreases uniformly from 4.0 cm to 3.0 cm in 25 seconds. The loop is in a constant, uniform magnetic field directed out of the page and with a magnitude of 6.0 T. 1 cm = 0.01 m. 1. What is the average magnitude of the induced EMF produced in the loop during that time? 2. What is the direction of the induced electric current in the loop (explain in terms of B lines)?

A square, single-turn coil 0.27 m on a side is placed with its plane perpendicular to a constant magnetic field. An EMF of 19 mV is induced in the winding when the area of the coil decreases at a rate of 0.11 m2/s. What is the magnitude of the magnetic field?

The figure below displays a circular loop of aluminum wire in a uniform magnetic field pointing into the page. The radius of the loop is 11.0 cm and the magnitude of the field is 0.120 T. You grab points A and B and pull them in opposite directions, stretching the loop until its area is nearly zero, taking a time of 0.210 s to do so. What is the magnitude of the average induced emf in the loop (in mV) during this time? X * * * X * * mV X x XÓT X A X *3** B X X x x X x X X x

A square loop of conductive wire Is laid flat against this computer screen. Each side of the square is 3.0m long. A 5.0T magnetic field passes through the loop, oriented so that it points directly out of your screen. If the magnetic field drops to only 2.0T over the course of 1.5 seconds, what emf will be produced in the square loop?

The intensity of the Earth's magnetic field near the equator is 35.0 UT. A circular coil with 42 tums and a radius of 77.0 cm is placed so its axis points along the direction of the Earth's magnetic field. The coil is then rotated through an angle of 265* in 50.0 ms. What is the magnitude of the average emf generated in the circular 0.00575 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. V

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 planar coil of wire has a single turn. The normal to this coil is parallel to a uniform and constant (in time) magnetic field of 1.80 T. An emf that has a magnitude of 2.40 V is induced in this coil because the coil's area A is shrinking. What is the magnitude of AA/At, which is the rate (in m²/s) at which the area changes? Number i Units