Need Questions #6 & #7 answered. An outside force, Fo, brings two small metal spheres, A and B, at rest from a long distance away to a point where they are 1 meters apart. They are then connected by a non-conducting string of negligible mass. The spheres have mass mA = 5.8 g and mB = 9.5 g and both...
(a) Can the displacement current exist in vacuum? Briefly explain. (2 points) (b) Consider a medium with dielectric permittivity є, magnetic permeability k. The conductivity ơ--O. If the magnetic field in this medium is H = H0 sin (at-kz)as, where-=--, find the electric field . You can assume that at t = 0, E = 0 at z = 0...
An electron is confined in the ground state in a one-dimensional box of width 10-10 m. Its energy is known to be 38 eV. (a) Calculate the energy of the electron in its first and second excited states (b) Sketch the wave functions for the ground state, the first and the second excited states (c) Estimate the average force (in...
Score: PHYS 421 HMK Problem 1.17& 1.18 Continuous Charge Distribution Section: Due date: Tuesday, February 20, 2018 at 12:10 PM Bring it done to class. It will be colected at the start of class. This one counts double: It will be recorded twice, as Ph 1,17 and Po 1.18 100 Here is a semi-infinite rod of total negative charge Q,...
Question 14 6.25 pts Amagnetic field whose magnitude is B = 1.66 Timpinges on a circular magnetic dipole of 100 turns, carrying a current of 3.33 A, whose radius is r = 2.66 cm. Because the magnetic dipole moment is rotated with respect to the field, the magnetic flux through the dipole is 03 = 2.64 x 10-3 Wb. (Wb...
A charge of -2C gains 10 J of potential energy when moving from point A to point B. The electric potential at point A is a. 5V lower than the electric potential at point B b. the same as the electric potential at point B c. 5V higher than the electric potential at point B d. 10 V higher than...
3. A particle of mass m in a one-dimensional box has the following wave function in the region x-0 tox-L: ? (x.r)=?,(x)e-iEy /A +?,(X)--iE//h Here Y,(x) and Y,(x) are the normalized stationary-state wave functions for the n = 1 and n = 3 levels, and E1 and E3 are the energies of these levels. The wave function is zero for...
Can
someone do question ii), please? Please do not copy others' answers
online. They are incorrect!
B. Using complex variables to simplify interference problems This question concerns a set up from Physics 123 (optics) in which light with wavelength λ and angular frequency w 2nc/λ passes through a grating with 5 narrow slits a distance a apart. (See also Boas...
The electromagnetism means ? a) relation between electric field and magnetic field b) relation between positive charge and neg6charge
What supports a reularstar against gravity? Dark matter. Centripetal forces. Electric/magnetic repulsion. Pressure gradient.