A airplane having a metal surface and a wingspan of 25.0 m flies horizontally at 200. m/s where the earth's magnetic field is vertical with magnitude 45.0 ?T

(a) What emf is induced across the wings?
(b) What wingspan would the plane need to produce 1.00-V emf across its wings?
(c) The plane now reverses direction. Does the polarity of the wingtip emf change? That is, if the left wing was positive before, does it now become negative?


(a) 0.225 V (b) 111. m (c) no polarity change

Physics & Space Science

You might also like to view...

The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium. According to modern science, where did the elements heavier than hydrogen and helium come from?

A) They were produced by stars that lived and died before our solar system was born. B) They were produced by gravity in the solar nebula as it collapsed. C) They have been present in the universe since its birth. D) They were made by chemical reactions in interstellar gas.

Physics & Space Science

What are the two most important properties of a telescope? Select exactly two responses.

A. light-collecting area B. retinal intensity C. angular resolution D. magnification

Physics & Space Science

Given 30. ?H and a 60. ? resistor, what range of capacity allows tuning this series circuit to the FM band (88-108 MHz)?

What will be an ideal response?

Physics & Space Science

The most important greenhouse effect gas in our atmosphere is ________

Fill in the blank(s) with correct word

Physics & Space Science