A high power line carries a current of 1.0 kA. What is the strength of the magnetic field this line produces at the ground, 10 m away? (?0 = 4? × 10-7 T ? m/A)

A) 4.7 µT B) 20 µT C) 6.4 µT D) 56 µT


B

Physics & Space Science

You might also like to view...

Which of these planets is approximately the same size as Earth?

a. Venus b. Mars c. Saturn d. Mercury e. Pluto

Physics & Space Science

A closed loop conductor that forms a circle with a radius of is located in a uniform but changing magnetic field

If the maximum emf induced in the loop is what is the maximum rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies? A) 0.40 T/s B) 2.5 T/s C) 0.080 T/s D) 5.0 T/s

Physics & Space Science

Earth's third largest ocean is the ______________ Ocean

Fill in the blank(s) with correct word

Physics & Space Science

The direction of the force on a current-carrying wire in a magnetic field is described by which of the following?

A) parallel to the current only B) parallel to the magnetic field only C) perpendicular to the current only D) perpendicular to the magnetic field only E) perpendicular to both the current and the magnetic field

Physics & Space Science