2006 AP Hys E/M FRQ Answers

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1

<p>Could anyone double check my answers for the 2006 AP C E/M exam? (only going to include final answers)</p>

<p>1
a) arrow towards up right corner
b)
i Q/((pi)(epsilon)(a^2))
ii-Q/(root(2)pi(epsilon)a)
c) negative
d)
i replace the +Q with -Q
ii Replace top right -Q with +Q</p>

<p>2
a) dq/dt=(EMF/R)e^(-t/RC)
b)q=C(EMF)(1-e^(-t/RC))
c)114.3 seconds
d) I have no idea what this is and could use the help, I’m guessing maybe a horizonatal line for I1 but no idea for I2</p>

<p>3
a)down
b) kx/(IW)
c)
i clockwise
ii (BWv)/R
d)(BWv)^2/R
e)Increases</p>

<p>Thanks for any help, especially on 2d, I’m taking the exam late and sort of freaking out.</p>

2

<p>also, can someone explain to me in brief how to determine significant figures? My teacher never bothered with them but i was looking at one of the FRQ rubrics on apcentral and it said for a certain part you lost points for using too many sig figs.</p>

3

<p>bump
10 chars</p>