Please answer all parts SHOWING ALL STEPS CLEARLY EXPLAINING THE CONCEPTS and make sure all are 100% correct solutions and do NOT use calculus (integration, Cross product, etc.) to solve any of them.

For the first question, ALSO assume there is a point on the positive y axis above the center of the loop, and another point on the negative x axis. What direction is the magnetic field at these points and how do you know?

The coil at right is connected to batteries which are not shown in the diagram. The coil is in the xz plane, and location B is on the positive X-axis. A current of 6 amperes runs through the coil in the direction shown. The coil consists of 9 loops and has a radius of 3.1 cm. Which direction below best corresponds to the direction of the magnetic eld at location B, due to the current in the coil? mi-h-OOMH + 8 . Two long current-carrying wires are 6 cm apart. The directions of the currents in the wires are given in the diagram, where 11 = 3.0 amperes and I; = 6.0 amperes. For which of the labeled locations, A,B,C,D, and E, is the net magnetic eld due to the wires equal to zero (excluding the earth's magnetic eld)? Locations A and E are 6cm from the nearest wire, Locations B and D are 2cm from the nearest wire, and location C is equidistant from each wire. 1 E only 2 A and E 3 B, C, and D 4 C only 5 D only Z (out of page) Two long current-carrying wires are 6 cm apart. The directions of the currents in the wires are given in the diagram, where I1 = 3.0 . A amperes and 12 = 6.0 amperes. For which of the labeled locations, A,B,C,D, and E, is the net magnetic field due to the wires equal to zero (excluding the earth's magnetic field)? Locations A and E 6 cm are 6cm from the nearest wire, Locations B and D are 2cm from - X the nearest wire, and location C is equidistant from each wire. z (out of page) - - - + 2 cm 6 cm 2 cm - - - - - - - - I, A (1) D only (2) A and E 6 cm B, C, and D 4) C only 5 E only - - - -- EAn electron moving with a velocity U = +(2 x 10'm/s)x enters a region between two parallel plates that are 6 mm apart and have a potential dif- ference of 200 V. The electron is deflected toward the top plate. What is the magnitude and direction of the external magnetic field that will allow the electron to travel between the plates without any deflection? = -(1.7 x 10-3 T) 2 X (1) (2 B = +(1.7 x 10-3 T) z (3 B= -(1.0 x 10-5T) z (4) = +(1.0 x 10-5T) Z (5) B = +(3.3 x 10-5T) z