Need the work for all problems llel wires shown in figure. Find magnetic field a

Question

Need the work for all problems llel wires shown in figure. Find magnetic field at a point the midway between the Consider the three long. Mtraight the page and 3 of 4.0 cm 10 A 15 A 5.0 A 2, Flexible circular loop shown in figure has r 0 cm and is in a magnetic field of strength A andias of2.0 s the loop is grasped at points B is perpendicular to the plane. During the time the loop during that and Band steadily stretched until its area is zero. Find the average induced emfin time. 3. An electron is accelerated through potential difference of 150 v from rest and then enters of uniform magnetic is field traveling perpendicular to the field. The magnitude of magnetic field is 0.50T, a What is on magnetic the magnitude of N. and path? mass of electron 9.11 x 10a kg, and the charge of electron is 1.6x 10 c in absolute value. 4. An electron moves through a region ofaossed electric and magnetic fields. The electric field E-2000 VIm and is directed down. The magnetic B- and is to the left. For what B velocity v of the electron into the paper will the electric force exactly cancel the magnetic force? (2500 m/s) 5.A current-carrying wire of so cm positioned perpendicular to a uniform magnetic field. If the current is 10.0 A is and it is determined that there is a resultant force of3.0Non the wire due to the interaction of the current and field, what the magnetic field strength? (0.60 T) 6. A proton is released such that it has an initial speed of 4.0 10 m/s from left to right across the page. A magnetic field of 1.2T is present at an angle of30 to the horizontal direction (orpositive x axis. What is the magnitude of the force experienced by the procon? A,8x10 N) Note: The charge of proton is 10 c 7. There is a current I flowing in a clockwise direction in a square loop of wire that is in the plane of the paper. If the magnetic field B is toward the right, and if each side of the loop has length L, then find the net magnetic force acting on the loop. (Zero)Nere: You have to proofyour answer. 8. A copper wire of length 25 cm is in a magnetic field of 0.20 T.If it has a mass of 10g, what is the minimum current through the wire that would cause a magnetic force equal to its weight? (2.0 A) consisting of 20 turns, each with an area of 50 cm is positioned perpendicularly to a uniform magnetic t coil of wire field that increases its magnitude at a constant rate from 2.0 to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 W, what is the magnitude of the induced current? (0.50 A)

Explanation / Answer

here,

I1 = 15 A

I2 = 5 A

I3 = 10 A

the magnetic feild midway between the wires , B = u0 * I3 /( 2 * pi * 0.02) + u0 * I2 /( 2 * pi * 0.02) - u0 * I1 /( 2 * pi * 0.04)

B = 1.26 * 10^-6 /( 2 * pi ) * ( 10 /0.02 + 5/0.02 - 15/0.04) T

B = 7.52 * 10^-5 T

the magnetic feild midway between the wires 2 and 3 is 7.52 * 10^-5 T out of the page

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