A long straight current-carrying wire with a current /, = 3A is 0.5m above the second long straight current-carrying wire with a current of 12 = 4A in the same direction. (a) calculate the magnitude and direction of the net magnetic field at point P, a distance of 1/3a from the wire 2. (b) What is the magnitude and direction of the force per unit length that wire 2 exerts on wire 1? a=0.5m

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A wire carries a steady current of 2.20 A. A straight section of the wire is 0.750 m long and lies along the y axis within a uniform magnetic field,  = 1.90  T. If the current is in the positive y direction, what is the magnetic force on the section of wire? Magnitude   Direction

A beam of electrons moving with speed v = 2.6 × 10’m/s enter and then leave the rectangular region of the magnetic field, as shown below. The trajectory of electrons is a quarter of a circle of radius R= 0.020 m. Mass of electron m = 9.11 x 10-31 kg, charge of electron charge q = 1.6 × 10-19 C). The magnitude and direction of the magnetic field are: %3D %3D the region of the magnetic field a. 0.45 T, perpendicular to the page, into the page Ob. 0.74 T, perpendicular to the page, out of the page Oc. 0.45 T, perpendicular to the page, out of the page С. O d. 0.074 T, perpendicular to the page, into the page e. 0.68 T, perpendicular to he page, into the page