Awire that is 0.36 meters long moves perpendicularly through a magnetic field at a speed of 0.21 meters/second. the induced emf produced in the wire is 0.45 volts. what is the magnetic field strength?

Magnetic field strength, B = 5.95 Tesla

Explanation:

It is given that,

Length of wire, l = 0.36 m

It is moving perpendicularly through a magnetic field at a speed of, v = 0.21 m/s

Induced emf, E = 0.45 volts

The mathematical expression for induced emf is given by :

is the rate of change of magnetic flux,

B is magnetic field

So,

B = 5.95 Tesla

Hence, this is the required solution.

the area between the graph and the t axis

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form