0 points 1 Previous Answers 1 227 Notes Ask Your A current-carrying wire passes

Question

0 points 1 Previous Answers 1 227 Notes Ask Your A current-carrying wire passes through a region of space that has a uniform magnetic flield of 0.97 T. If the wire has a length of 2.7 m and a mass of 0.60 kg, determine the minimam current needed to levitate the wire. 63 How does the direction of the magnetic force exerted on the wire compare to the direction of the gravitational force? How is the magnitude of the magnetic force related to the magnitude of the gravitational force acting on each wire? What physical quantities determine the magnitude of the magnetic and gravitational force acting on each wire? A upporting Materials Physical Constants

Explanation / Answer

here,

the magnitude of feild , B = 0.97 T

length of wire , l = 2.7 m

mass , m = 0.6 kg

let the minimum current in the wire be I

to levitate the wire

the net force on the wire is zero

gravitational force = magnetic force

m * g = B * I * L

0.6 * 9.81 = 0.97 * 2.7 * I

solving for I

I = 2.25 A

the minimum value of current in the wire is 2.25 A

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