ShmoopTube

00:04

And here's your shmoop du jour brought to you by starship captains..

00:07

because our favorite thing to wear is a starship captains uniform. All right the [Man stood on a bed wearing a starship captain uniform in space]

00:12

starship moonlight phantom is navigating the strange planet of spinach-topia and

00:17

power supplies are running low the last thing captain O'Neill wants to do is [Captain O'Neill being fed spinach]

00:21

land because well she really hates spinach. The magnetic field of spinach-

00:26

topia is point one tesla's far higher than that of Earth the captain wonders

00:31

if the EMF generated across the metal wings of the starship could provide a [Starship zooms off into the distance]

00:34

power boost the ship has a velocity of five kilometers per second and a wingspan

00:39

of 200 meters the EMF induced in a conductor of length L moving through a

00:44

magnetic field B with a velocity V is EMF equals BBL calculate the EMF induced

00:51

across the wings of the starship and here are the potential answers yeah spinach [a big red pause button]

00:58

based planet doesn't have a lot of appeal to us either but we'd be happy to

01:02

land on cheeseburgeriter any time we're in the neighborhood the question [Boy jumping on cheeseburgers]

01:07

tells us that EMF equals velocity times the magnetic field intensity measured in

01:12

Tesla's times the length of a wire of course we don't have a wire we have a [girl wearing a onesie holding a wire]

01:16

spaceship way cooler than a piece of wire with a velocity of 5000 meters per

01:20

second, a magnetic fields of point 1 Tesla's and a length of 200 meters we

01:24

have a voltage of a hundred thousand volts also known as a hundred kilo volts

01:29

so the right answer is C if you need anything else we'll be traveling amongst [Boy in bed riding around outer space]

01:35

the stars in our dreams and with our blanky.

Full Transcript