A triangle loop of wire (length of each side is 5 cm and the angle between legs is 600) hangs vertically as shown in Fig.6. A magnetic field B is directed horizontally, perpendicular to the wire, and points out of the page at all points and passes through half of the triangle. The loop hangs from a balance which measures a downward magnetic force (in addition to the gravitational force) of F = 5.0 x 10-2 N when the wire carries a current I = 0.5 A. What is the magnitude of the magnetic field B?

Calculate the magnitude of the magnetic force exerted on a wire that is 20 mm long and carries a current of 4.0 A when it is suspended inside a solenoid at an angle of 45 to the magnetic field. The solenoid has 750 turns per meter of length and carries a current of 3.0 A.

Helmholtz coils are frequently used in experiments because they create a uniform magnetic field about their central axis. For example, they are traditionally used in the experiment for the measurement of the charge-to-mass ratio of the electron. Helmholtz coils are two coils separated by a distance equal to their radius that carry equal currents in the same direction." Suppose the radius of the coils is R 18.00 cm and each coil carries a current of /== 11.50 A and has N 340.0 turns. The coils are in the yz plane where one coil's center is at x = 0 the other coil's center is at x = R. -X=R 00

Final Answer must be whole number or decimal number only!!!