8. (4 points) Consider a Copper metal shaped as an elongated parallelepiped. An electric field is...
6Ol prints)Given that the work function of chromium is 4.40 eV, calculate the kinetic enerey of electrons emited fom a chromium surface that is iradiated with ultraviolet radiation od wvellemgh 200 mm ( mm=10ml 7-(20 points)Drew the allowed energy for each case: (a) Free electrom Bound electiron in a square potential well with infinite potential barrier 8. (4 points) Consider a Copper metal shaped as an elongated parallelepiped. An electric field is applied to this sample in the +y direction...
The electric field of an electromagnetic wave points in the negative y-direction. At the same time, the magnetic field of this wave points in the negative x-direction. In what direction is the wave traveling? +x-direction -x-direction +y-direction -y-direction +z-direction -z-direction Find the frequency of blue light with a wavelength of 454 nm. Hz What is the rms value of the electric field in a sinusoidal electromagnetic wave that has a maximum electric field of 94 V/m? V/m
Light travels in the positive x-direction. At a particular location and time the electric field points in the positive y-direction. In which direction is the magnetic field? a) positive z-direction b) negative z-direction
4. A tetrahedron shaped piece of doped semiconductor, has an electric field is applied to it. The final electric field vector is measured to be E =(x, sin( - ), xy). Find the total charge, Q, in the semiconductor by performing a flux integral of the electric field over the total surface of the semiconductor, Q=& E.ÑA (Assume for simplicity that ε =1). The semiconductor is the volume below the planex++z=1 in the first octant x 0, y = 0,...
please help Problem 5-15pts A magnetic field B points in the x-direction and electric field E points in the 2-direction. A positive particle at rest is released from the origin. a) Starting with general solution y(t) = 6 cos wt + C sin wt + + + C3; z(t) = C2 cos wt - Csin wt + C4 and using initial conditions, determine the constants G,C2, Cand C, and write the exact solution (10pts) b) Find the trajectory of the...
(9 points) Consider the bowl-shaped paraboloid z = f(x, y) = 4 + x2 + 3y2. (a) If you are located on the paraboloid at the point (2, - *), in which direction should you move in order to ascend on the surface at the maximum rate? What is the rate of change? (b) If you are located at the point (2, -), in which direction should you move in order to descend on the surface at the maximum rate?...
CONSIDER THE SETUP IN THE WORKSHEET , AND CALCULATE THE MAGNETIC FIELD AT THE LOCATION (5cm, 0) due to the segment of current that starts at (0,-2cm) and ends at (0, -1cm). ATTACH A PICTURE SHOWING YOUR WORK. EXPLAIN HOW YOU WOULD CALCULATE THE NET MAGNETIC FIELD AT THE LOCATION (5cm, 0). I hope you can read it this time the point label is E (0.90, 0, -0.17) . thanks ! t (a) (4 points) what is the direction of...
3. Consider the electromagnetic wave k=(0.2) where .A Draw the electric field E, magnetic field B and Poynting vector S at the points = (x, y, z) that fulfill: a) th when t-0. - e condition-k = 0 Side view 3D view b) the condition F. k-2 when t-o. Side view 3D view 3.B Calculate the wavelength λ of the wave (6). Compare the magnitude of λ with the magnitude of k. 3.C Wave (6) is expressed in terms of...