Practice
Final Exam
1.
A thin metallic shell of radius x1 cm has a charge of -x2 nC on it.
At the center of the sphere is a point charge of x3 nC. What is the
electric field x4 cm from the center of the shell?
2. Three x1 C charges are placed along the x-axis, one charge at x = x2 cm, another at the origin, and the last one at x = x3 cm. What is the total potential energy of this arrangement?
3. A variable resistor has a voltage of x1 V placed across it. If the resistance is increased x2%, what happens to the current through it?
4. A power line carries x1 kA at a height of x2 m above the ground. What is the resulting magnetic field at ground level?
5. Doubling the diameter of a loop of wire produces what change of induced emf?
6. An RLC series circuit has a x1 Ω resistance, a x2 mH inductor, and a capacitor. If the circuit is in resonance at x3 kHz, what is the capacitive reactance?
7. In vacuum, the components of an EM wave are Ey = 50(V/m)cos[(5.00 m-1)x + π/4], Ex = 0, and Ez = 0. What is the wavelength of the wave?
8. A ray of light enters an equilateral prism made of material with n = x1 at an angle of incidence . The internally refracted ray is parallel to the base of the prism. What is the angle of refraction for the ray leaving the prism?
9. If light of wavelength x1 nm is used in a double-slit experiment with slit separation x2 mm, what angle separates the two 4th order maxima?
10. Spaceships A and B are moving in the same direction along the same straight line. Spaceship A is moving at 0.800 c relative to a stationary observer, and spaceship B is moving at 0.800 c relative to spaceship A. What does the stationary observer find for the speed of spaceship B?
11. Light of wavelength x1 nm bombards a surface with work function x2 eV. What is the maximum kinetic energy of the photoelectrons from this surface?
2. Three x1 C charges are placed along the x-axis, one charge at x = x2 cm, another at the origin, and the last one at x = x3 cm. What is the total potential energy of this arrangement?
3. A variable resistor has a voltage of x1 V placed across it. If the resistance is increased x2%, what happens to the current through it?
4. A power line carries x1 kA at a height of x2 m above the ground. What is the resulting magnetic field at ground level?
5. Doubling the diameter of a loop of wire produces what change of induced emf?
6. An RLC series circuit has a x1 Ω resistance, a x2 mH inductor, and a capacitor. If the circuit is in resonance at x3 kHz, what is the capacitive reactance?
7. In vacuum, the components of an EM wave are Ey = 50(V/m)cos[(5.00 m-1)x + π/4], Ex = 0, and Ez = 0. What is the wavelength of the wave?
8. A ray of light enters an equilateral prism made of material with n = x1 at an angle of incidence . The internally refracted ray is parallel to the base of the prism. What is the angle of refraction for the ray leaving the prism?
9. If light of wavelength x1 nm is used in a double-slit experiment with slit separation x2 mm, what angle separates the two 4th order maxima?
10. Spaceships A and B are moving in the same direction along the same straight line. Spaceship A is moving at 0.800 c relative to a stationary observer, and spaceship B is moving at 0.800 c relative to spaceship A. What does the stationary observer find for the speed of spaceship B?
11. Light of wavelength x1 nm bombards a surface with work function x2 eV. What is the maximum kinetic energy of the photoelectrons from this surface?
