O.) A Boeing 747 with a wingspan of 64.4 m is flying in this area due north at 275 m/s. The earth's magnetic field at the plane's location has a magnitude of 52.5 µT. Although it points north, it is deflected down 64.5° below the horizontal. 64.5 言 747 BOCING a. Determine the induced emf across the plane's wings. (ans: 0.839 V) b. Which wing tip is at the higher potential, the one on the west side of the plane or the one one the east side of the plane? Explain how you arrived at your answer. (ans: west side)

A helicopter (see figure below) has blades of length 2.80 m; extending out from a central hub and rotating at 3.40 rev/s. If the vertical component of the Earth's magnetic field is 50.0 μT, what is the magnitude of emf induced between the blade tip and the center hub? mV Sascha Hahn/Shutterstock.com

An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 1.60 T field with his fingers pointing in the direction of the field. Find the magnitude of the average emf (in V) induced in his wedding ring, given its diameter is 2.26 cm and assuming it takes 0.210 s to move it into the field.

An airplane is flying due north at 720 km/h. The Earth’s magnetic field has a northward component of 0.020 mT and a downward component of 0.050 mT (Southern Indiana).  (a) If the wingspan (distance between wingtips) is 35 m, what is the motional emf between the wingtips? (b) Which wingtip has the higher electric potential?

A long solenoid has a radius of 4 cm and has 800 turns/m. If the current in the solenoid is increasing at the rate of 6 A/s, what is the magnitude of the induced electric field at a point 2.2 cm from the axis of the solenoid? a. 219.00 μν/m b. 90.00 μν/m Ο c. 66.30 μν/m d. 54.00 µV/m e. 482.16 µV/m

005 A uniform electric field of magnitude 5.06 x 10 V/m throughout a cylindrical volume re- sults in a total energy of 2.95 µJ. What magnetic field over this same region stores the same total energy? Answer in units of T.

How much current must pass through a horizontal power transmission cable in order for the magnetic field at a location 21 m directly below it to be equal to the Earth's magnetic field, which is approximately 8.0 x 10-5 T? Express your answer to two significant figures and include appropriate units. Value Units ?

Motional EMF Below is a rectangle that is being pulled into a magnetic field as shown. The rectangle has a height of h = 0.400 m and is being pulled to the right with a velocity of v = 188.0 m/s. This magnetic field starts where shown, so the left most side of the rectangle has no magnetic field. There is 1 loop with a total resistance of R = 15.40 Ohms. The magnetic field has a magnitude of B = 34.0 mT. That means as the loop moves to the right, the magnetic flux inside the loop is increasing. Magnetic Field (out of the page) Direction of velocity What is the induced current within the wire in this system? (Use a negative sign for clockwise current) Make sure to give your answer with appropriate significant figures and remember that you are looking for a magnitude. Your Answer: Answer units Height

A pickup truck has a width of 80.0 in. If it is traveling north at 35 m/s through a magnetic field with vertical component of 37 ?T, what magnitude emf is induced between the driver and passenger sides of the truck? mV