An L = 41.0 cm wire is moving to the right at a speed of v = 8.50 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 = 0.950 T and is directed into the screen. What is the emf & induced in the wire? E = The induced emf causes a current to flow in the circuit formed by the moving wire and the rails. In which direction does the current flow around V x Ø 10 Ø Ø 8 10 Ø

The figure below shows a flexible loop of metal wire with a radius of 10.0 cm. It lies in a magnetic field pointing into the page with a magnitude of 0.110 T. A lab TA grabs the loop at points A and B and rapidly pulls in opposite directions until the loop folds up, such that its area becomes zero. The change in area occurs in a span of 0.190 s. What is the average induced emf (in mV) in the loop over this time span? mV

A closely wound rectangular coil of 80 turns has dimensions of 25.0 cm by 40.0 cm. The plane of the coil is rotated from a position where it makes an angle of 37.0 ° with a magnetic field of 1.60 Tto a position perpendicular to the field. The rotation takes 0.0700 s. What is the average emf induced in the coil? Express your answer with the appropriate units. HA 59 V

A solenoid consists of 150 turns of wire. Each turn is a circle with diameter of d = 20 cm, and a uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.30 T in 0.60 s.a.) What is the magnitude of the induced emf in the coil while the field is changing?b.) Assume the coil is connected to a circuit and the total resistance of the coil and the circuit is 2.0 Ω. What is the magnitude of the induced current in the coil?

An elastic conducting material is stretched into a circular loop of 12.6 cm radius. It is placed with its plane perpendicular to a uniform 1.17 T magnetic field. When released, the radius of the loop starts to shrink at an instantaneous rate of 57.9 cm/s. What emf is induced in volts in the loop at that instant? Number i Units

The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 5.80 Ω, and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let ℓ = 1.20 m. Calculate the applied force required to move the bar to the right at a constant speed of 70m/s. At what rate is energy delivered to the resistor?

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 0.170 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 0.180 s to do so. What is the magnitude of the average induced emf in the loop (in mV) during this time? X X X A x x x x ☺ x x x x В * * x x x Imv X x x x XBX X x X X x (i)

A single loop of copper wire, lying flat in a plane, has an area of 8.60 cm² and a resistance of 1.50 2. 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 2.00 T in a time of 1.12 s. What is the induced current (in mA) in the loop of wire over this time? mA Need Help? ICE ANOTHER Read It

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.