11:06 PM Mon Apr 24

11:06 PM Mon Apr 24 3. 4. 5. To make the rod move to the right at speed v, you need to apply an external force on the rod to the right. If 1= B cm, B filed is D/50 T, v= B/5 m/s and R= C/ 10 Q. (a) Explain and determine the current I? (b) determine the magnitude of the required force. (c) What external power is needed to move the rod? A C number of loop square coil of wire, with side length B/5 cm and total resistance C Q, is positioned perpendicular to a uniform D/ 100 T magnetic field. It is quickly pulled from the field at constant speed (moving perpendicular to B) to a region where B drops abruptly to zero. At t = 0, the right edge of the coil is at the edge of the field. It takes B/50 s for the whole coil to reach the field-free region. Find (a) the rate of change in flux through the coil (b) the emf and current induced. (c) How much energy is dissipated in the coil? (d) What was the average force required (Fext)? x x x x x x x x x x x x x x x x x x X x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x When unpolarized light is incident on a sheet of polarizing material with a transmission axis oriented vertically, what percentage of the light is transmitted through the material? Then you insert the second polarization sheet with 300 to x axis, what percentage of the light is transmitted through the second polarizer?