Determine the potential difference developed across the wings of a Boeing 747 airliner when traveling north at .The wingspan is .Earth’s magnetic field points in a direction below a horizontal line directed north. In solving this problem, follow the outline developed in the previous problem. Note that the magnetic field is not perpendicular to the plane’s velocity.
Step 11 of 5
Firstly, sketch and explain the system.
Secondly, derive the expression for the electric force and the magnetic force which are balanced.
Finally, substitute and determine the potential difference developed across the wings of a Boeing 747 airliner while traveling.
Recommended textbook solutions
An ice skater is spinning on frictionless ice with her arms extended outward. She then pulls her arms in toward her body, reducing her moment of inertia. Her angular momentum is conserved, so as she reduces her moment of inertia, her angular velocity increases and she spins faster. Compared to her initial rotational kinetic energy, her final rotational kinetic energy is (a) the same (b) larger, because her angular speed is larger (c) smaller, because her moment of inertia is smaller.
A jogger runs along a straight and level road for a distance of 8.0 km and then runs back to her starting point. The time for this round-trip is 2.0 h. Which one of the following statements is true? (a) Her average speed is 8.0 km/h, but there is not enough information to determine her average velocity. (b) Her average speed is 8.0 km/h, and her average velocity is 8.0 km/h. (c) Her average speed is 8.0 km/h, and her average velocity is 0 km/h.