17. If you have a series circuit that starts at the terminal battery, goes through three light bulbs, and goes back to the other terminal, what would happen if the first bulb burned out?

4. (5 point) An infinitely-long cylindrical wire with radius a is made of perfect conductor and is located above a perfect conducting ground plane. If the distance between the center of the wire and the ground plane is 2a, then what is the unit capacitance between the wire and the ground?

4.A vertical wire carries a current of 6.0A What is the Magnetic field at (a) 20 mm and (b) 40 mm from the wire?

21. What is the difference between specular reflection and diffuse reflection?

18. Find the speed of light through an emerald. The index of refraction for an emerald is 1.58.

9. Which waves on the electromagnetic spectrum have the longest wavelength?