A single loop of steel wire, lying flat in a plane, has an area of 7.80 cm2 and a resistance of 2.10 Q. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 1.50 T in a time of 1.10 s. What is the induced current (in mA) in the loop of wire over this time? MA Read

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. The square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field. The magnetic flux that passes through the square loop is 5.17× 10 Wb. What is the flux that passes through the circular loop? Number i Units

The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.40 02, and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let € = 1.20 m. R M xxxx ** x xx xxxxxx * xxxxxx xxx * xx x x xxxxxx x x xxxxxx xxxxxx app (a) Calculate the applied force required to move the bar to the right at a constant speed of 1.90 m/s. N (to the right) (b) At what rate is energy delivered to the resistor? W

A single loop of copper wire, lying flat in a plane, has an area of 7.60 cm² and a resistance of 2.40 Q. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 1.50 T in a time of 1.08 s. What is the induced current (in mA) in the loop of wire over this time? How does Faraday's law relate the change in flux per unit time to the emf? What are the initial and final flux values through the loop? How is the induced emf related to the resistance and induced current? Be careful of units-note the final answer should be expressed in mA. mA