A 5000-W resistor and a 50-mF capacitor are connected in series at t = 0 with a 6-V battery. The capacitor is initially uncharged. What is the current in the circuit at t = 0? At t = 0.5 s? What is the maximum charge stored on the capacitor?
1.2 mA, 0.162 mA, 300 mC
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In a Newton's rings apparatus, find the phase difference (in radians) when an air wedge of 500 nm thickness is illuminated with red light (? = 640 nm)
a. 13 b. 11 c. 9 d. 7 e. 3
Answer the following statement(s) true (T) or false (F)
1. The units of the electric field 
are N/C. We can alternatively say the field has units of V/m.
2. A single particle can have potential energy.
3. Even if we define the potential to be zero at infinity, the potential created by a charge distribution can be negative at another point.
4. Consider a point P midway between two particles, one with charge -q and one with charge q. The electric field vector at point P is zero.
A particular material has an index of refraction of 1.25 . What percent of the speed of light in a vacuum is the speed of light in the material?