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release-ulmo
common/test/data/conditional/problem/choiceprob.xml
22 строки
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ichuang
cleaned up conditional module a bit; add test for conditional module
04 фев 2013, 05:59
04 фев 2013, 05:59
4446ddb
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<problem display_name="S3E2: Lorentz Force"> <startouttext/> <p>Consider a hypothetical magnetic field pointing out of your computer screen. Now imagine an electron traveling from right to left in the plane of your screen. A diagram of this situation is show below…</p> <center><img width="400" src="/static/images/LSQimages/LSQ_W01_8.png"/></center> <p>a. The magnitude of the force experienced by the electron is proportional the product of which of the following? (Select all that apply.)</p> <endouttext/> <choiceresponse> <checkboxgroup> <!-- include ellipses to test non-ascii characters --> <choice correct="true"><text>Magnetic field strength…</text></choice> <choice correct="false"><text>Electric field strength…</text></choice> <choice correct="true"><text>Electric charge of the electron…</text></choice> <choice correct="false"><text>Radius of the electron…</text></choice> <choice correct="false"><text>Mass of the electron…</text></choice> <choice correct="true"><text>Velocity of the electron…</text></choice> </checkboxgroup> </choiceresponse> </problem>