A flat circular loop of radius 0.10 cm is rotating in a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when the plane of the loop and the magnetic field vector are perpendicular. 0.0055 T. m^2 0.0063 T. m^2 O OT. m^2 O 0 000000628 T m^2

An electron ( mẹ = 9.11×1031 kg. q=1.6x10-91 C) moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 7.3 mT. If the speed of the electron is 1.50 x107 m/s, determine the radius of the circular path ( in units of cm). Select one: A. 0.04 B. 1.17 C. 0.62 D. 1.44 E. 1.72

Hey I am doing some physics homework and am stumped on this question.  Any help will be great! Thanks!

An electron ( me = 9.11×1031 kg- q=1.6×10-91 C) moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 7.5 mT. If the speed of the electron is 1.50 x107 m/s, determine the radius of the circular path ( in units of cm). Select one: A. 1.14 B. 0.04 C. 1.67 OD. 0.61 O E. 1.41

Two circular loops of wire lie in the x-y plane, centered at the origin. The radius of the loops is 5.00 and 7.00 cm. The current in the outer loop is 50.0 mA in the clockwise direction. a. If the current in the inner wire is also 50.0 mA in the clockwise direction, what is the magnetic field strength at the origin? b. What current magnitude and direction in the inner wire will cause the magnetic field to be zero at the origin?

27.41     The 20.0 cm x 35.0 cm rectangular circuit shown in Fig. E27.41 is hinged along side ab. It carries a clockwise 5.00-A current and is located in a uniform 1.20-T magnetic field oriented perpendicular to two of its sides, as shown.  (a) Draw a clear diagram showing the direction of the force that the magnetic field exerts on each segment of the circuit (ab, bc, etc.).  (b) Of the four forces you drew in part (a), decide which ones exert a torque about the hinge ab.  Then calculate only those forces that exert this torque.  (c) Use your results from part (b) to calculate the torque that the magnetic field exerts on the circuit about the hinge axis ab.

If a rectangular loop of wire is placed between the two poles poles of a magnet, with the dimensions w = 0.30 m and L = 1.2 m, and carries a current | = 3.0 A ( clockwise). The magnetic field due to the magnet is uniform and of magnitude 0.90 T. The loop rotates in the magnetic field. What is the magnitude of maximum torque acting on the wire due to the magnetic field? B WC N L A D O 0.40 N · m O 0.83 N · m O 0.48 N · m O 0.97 N · m O 0.88 N · m

Option 2: a. An electron is moving at a speed of 4.45 x 105 m/s from north to south in a magnetic field that runs from [NE] to [SWJ. If the magnetic force balances the gravitational force on the electron, determine the strength of the magnetic field. b. Now consider a 50.0 cm long wire with a mass of 60.0 g that carries a current of 15.0 A from north to south. The uniform magnetic field is perpendicular to the above- mentioned wire. What the minimum magnetic field strength and direction that will balance the weight of the wire?

The magnitude of the magnetic flux through the surface of a circular plate is 2.50 10-5 T. m2 when it is placed in a region of uniform magnetic field that is oriented at 46.0° to the vertical. The radius of the plate is 8.50 cm. Determine the strength of the magnetic field.        mT?

A segment of wire of total length 2.0 m is formed into a circular loop having 12 turns. If the wire carries a 1.2 A current, determine the magnitude of the magnetic field at the center of the loop. a. 340.70 µT O b. 196.70 µT c. 400.32 µT d. 177.12 µT e. 28.39 μΤ