AP Physics C 2017

Note that we didn’t plug in any negative signs! Rather, we calculated the magnitude of the electric fiel ...

The direction of this force must be OPPOSITE the E field because the electron carries a negative charge; ...

one expects you to be able to evaluate a three-dimensional integral with a dot product! ONLY use Gaus ...

What is interesting about this result? We solved in terms of the charge density σ on the conductor. If we s ...

difference between the plates is V . Point A is twice as far from the negative plate as is point B ...

Explain briefly. (c) If the two spheres are connected by a metal wire, will charge flow from the big ...

(d) The charge will flow until the potential is equal on each sphere. By definition, negative char ...

(^1) The actual equation sheet for the AP exam includes this equation: . To interpret this (and ...

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CHAPTER 18 Electrostatics 1 . A cubic Gaussian surface of side length x sits centered in a un ...

(D) decreases and continues in the same direction. (E) decreases and changes direction. 3 . ...

(B) (C) (D) (E) Answers 1 . A —The uniform electric field is downward from the positive plate to the nega ...

Note: Please be careful with your signs of the potential and electron charge! 4 . C —The original forc ...

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CHAPTER 19 Circuits IN THIS CHAPTER Summary: Electric charge flowing through a wire is called current. An elec ...

Time constant for an RC circuit: τ = RC In the last chapter, we talked about situations where electric ...

Figure 19.1 Flow of charge in a wire connected to a battery. In general, the greater the potenti ...

V is the voltage across the part of the circuit you’re looking at, I is the current flowing through that part of ...

To find the equivalent resistance of series resistors, we just add up all the individual resistors. For the circu ...

Rule #1 —When two resistors are connected in SERIES, the amount of current that flows through one resistor ...