A conducting wire shaped in a "U shape" is connected to a 5 ohm light bulb. The 0.8 T external magnetic field is directed into the page as shown. A conducting bar of length 1.2 m is sliding on the conducting wire at 2 m/s to the right. What is the induced emf?

Suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an area of 0.230 m². It is stretched to have no area in 0.100 s. X Bin XBin X V What is the direction? clockwise X counterclockwise X X What is the magnitude (in V) of the average value of the induced emf if the uniform magnetic field points into the page and has a strength of 1.75 T? X X 192 X

A loop of area 225 cm2 has 24 turns of wire. It is in a magnetic field of strength 3.6 x 10-2 T. To begin with, its plane (face) is parallel to the magnetic field lines. In a time of 0.15 s it is rotated so that its plane is perpendicular to the magnetic field lines. What is the average emf induced in the loop during the one-quarter rotation?

A circular coil of 50 turns and radius 8.0cm is placed with its plane oriented at  90 degrees to a magnetic field of .20 T. the field is now increased at a steady rate, reaching a value of .80T after 3.0 seconds. What emf is induced in the coil?  a. 40V b. 0V c. 0.20V d. 0.0040V e. 2010V

The figure below displays a circular loop of conducting wire in a uniform magnetic field pointing into the page. The radius of the loop is 10.0 cm and the magnitude of the field is 0.160 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 0.170 s to do so. What is the magnitude of the average induced emf in the loop (in mV) during this time? * х * X x х A x * * x K mV X x * x. B * * *

A wire 0.2 m long moves at a constant speed of 5 m/s in a direction that is 37o with respect to a magnetic field of 0.2 T directed perpendicular to the wire. The induced emf is approximately ____. A. 0.12 V B. 0.16 V C. 0.20 V D. 0.24 V can you help me to get answer

A circular loop of wire lies in a plane perpendicular to a magnetic field. The magnetic field has a magnitude of 1.3 T and points out of the page as shown in the figure. The radius of the loop is 18 cm and it has a resistance of 3.2 Ω. Find the induced emf in the loop of wire if the magnetic field doubles in magnitude in 1 seconds. What is the induced current in the loop? In which direction is the induced current?

A fixed 11.1-cm-diameter wire coil is perpendicular to a magnetic field 0.73 T pointing up. In 0.14 s , the field is changed to 0.24 T pointing down. What is the average induced emf in the coil?

A loop of wire sits in an external magnetic field as shown (in other words, the field shown in the picture is NOT a field created by the loop). The loop has a radius of 2.8 m. If the external magnetic field changes from 5.5 T to 11 T in 6.1 s, what is the magnitude of the induced emf in the loop? a. 2.22×101 V b. 2.22×101 V c. 1.59×101 V d. 4.44×101 V e. 7.07 V

The magnetic field through a single loop of wire 14.0 cm in radius and of 11.5 Ω resistance changes with time as shown in the figure. Calculate the emf in the loop as a function of time. a)What is the emf at t = 1.0 s? For the sign take the loop in the plane of the paper, and the magnetic field out of the paper. Take clockwise to be positive emf.  b)What is the emf at t = 3.0 s?  c)What is the emf at t = 5.0 s?  d)What is the current at t = 1.0 s?