The formula for determining the magnetic field around a straight conductor is B = where B is the magnetic field in Teslas, is a constant called the vacuum permeability, I is the current in Amperes, and r is the radial distance in meters. Which transformed equation can be used to determine the radial distance, r, needed to create a specified magnetic field with a given current?

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

answer: i would say b

step-by-step explanation:

with the way the question is worded, i believe b is the answer

the cost of the apple depends on the weight

afjnawenkfnjaw; enkanwelwaklalejjaw; fij

step-by-step explanation:

step-by-step explanation: