Eðlisfræði 2, vor 2007
Eðlisfræði 2, vor 2007
Eðlisfræði 2, vor 2007
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http://session.masteringphysics.com/myct<br />
04/19/<strong>2007</strong> 05:02 PM<br />
Hint not displayed<br />
Hint J.2<br />
Graph of<br />
Hint J.3<br />
Conservation of energy<br />
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ANSWER: 0.0 ms 2.0 ms 4.0 ms 6.0 ms 8.0 ms<br />
Part K<br />
At what time do the capacitor and the inductor possess the same amount of energy for the first time?<br />
Hint K.1<br />
Hint K.2<br />
Hint K.3<br />
Use conservation of energy<br />
Energy and charge<br />
A useful trigonometric result<br />
Hint not displayed<br />
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Express your answer in milliseconds.<br />
ANSWER: = 1.0<br />
Part L<br />
What is the direction of the current in the circuit 22.0 milliseconds after the switch is closed?<br />
Hint L.1<br />
Hint L.2<br />
Use the periodic nature of the process<br />
Graph of<br />
Hint not displayed<br />
Hint not displayed<br />
ANSWER:<br />
The current is zero.<br />
clockwise<br />
counterclockwise<br />
Part M<br />
What is the direction of the EMF in the circuit 42.0 milliseconds after the switch is closed?<br />
Hint M.1<br />
Graph of<br />
Hint not displayed<br />
ANSWER:<br />
The EMF is zero<br />
clockwise<br />
counterclockwise<br />
Energy within an L-C Circuit<br />
Consider an L-C circuit with capacitance , inductance , and no voltage source, as shown in the figure . As a function of time, the<br />
charge on the capacitor is and the current through the inductor is . Assume that the circuit has no resistance and that at one<br />
time the capacitor was charged.<br />
Part A<br />
As a function of time, what is the energy<br />
stored in the inductor?<br />
Express your answer in terms of and .<br />
http://session.masteringphysics.com/myct<br />
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