Atoroidal solenoid with mean radius r and cross-sectional area a is wound uniformly with n1 turns. a second toroidal solenoid with n2 turns is wound uniformly on top of the first, so that the two solenoids have the same cross-sectional area and mean radius.
part a)
what is the mutual inductance of the two solenoids? assume that the magnetic field of the first solenoid is uniform across the cross section of the two solenoids.
express your answer in terms of the variables n1, n2, a, r, magnetic constant μ0 and others appropriate constants.
part b) if n1 = 550 turns, n2 = 300 turns, r = 10.6 cm , and a = 0.660 cm2 , what is the value of the mutual inductance?
express your answer to three significant figures and include the appropriate units.

State the right hand rule of the direction of magnetic field in a conductor carrying current

Dinate system, and a charge q = - 2.00 nc is placed s2 10 n> c. (a) what is the change in electric potential energy when the dipole moment of a molecule changes its orientation with respect to es from parallel to perpendicular? (b) at what absolute temperature t is the average translational kinetic energy 32 kt of a molecule equal to the change in potential energy calculated in part(: abovethistemperature, thermalagitationprevents the dipoles from aligning with the electric field.) placed in a uniform electric field e with magnitude 1.6 * 6 on the positive x-axis at x = 4.00 cm. (a) if a third charge q3 = +6.00 nc is now placed at the point x = 4.00 cm, y = 3.00 cm, find the x- and y-components of the total force exerted on this charge by the other two. (b) find the magnitude and direction of figure p21.62 ll uu 21.55 . torque on a dipole. an electric dipole with dipole moment ps is in a uniform external electric field es. (a) find the orientations of the dipole for which the torque on the dipole is zero. (b) which of the orientations in part (a) is stable, and which is unstable? (hint: consider a small rotation away from the equi- librium position and see what happens.) (c) show that for the stable orientation in part (b), the dipole’s own electric field tends to oppose the external field. 21.62 ..

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.