dummy11 [MEXLE Wiki]

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<WRAP column half> <panel type="info" title="Exercise - Quiz"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 88%> <quizlib id="quiz1" rightanswers="[[:a1|'a1']]" submit="check answers"> <question title="Which of the following statement(s) for real diodes is/are correct?" type="checkbox"> P-doping produces quasi-free electrons| Conductivity in semiconductors happens via conduction band and valence band| The diode blocks at any negative voltage (reverse voltage).| The diode can be modeled as a voltage source and capacitor </question></quizlib></WRAP></WRAP></panel>

<panel type="info" title="Exercise - Quiz"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 88%> <quizlib id="quiz2" rightanswers="[[:a0_a1_a2_a3|'a0', 'a1', 'a2', 'a3']]" submit="check answers"> <question title="On which physical properties does the forward voltage $U_S$ depend?" type="checkbox"> temperature| current range considered| (semiconductor) material| LED color| breakdown voltage of the Z-diode </question></quizlib></WRAP></WRAP></panel>

<panel type="info" title="Exercise - Quiz"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 88%> <quizlib id="quiz3" rightanswers="[[:a1_a3_a5|'a1', 'a3', 'a5']]" submit="check answers"> <question title="Which statement(s) about the junction is/are correct?" type="checkbox"> There is no electric field in the junction| The junction does not contain free charge carriers| The junction becomes larger when current is passed through it| Electron-hole pairs are created in the junction by photons| The junction is enlarged in the Schottky diode compared to the PN diode| The junction forms a capacitor </question></quizlib></WRAP></WRAP></panel>

</WRAP><WRAP column half> <panel type="info" title="Exercise - Quiz"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 88%> <quizlib id="quiz4" rightanswers="[[:a1_a2_a3|'a1', 'a2', 'a3']]" submit="check answers"> <question title="The forward voltage …" type="checkbox"> … for silicon is fixed about 0.6 … 0.7 V| … serves to allow electrons to cross the bandgap| … depends on the current range under consideration| … is smaller for germanium diodes than for silicon diodes. </question></quizlib></WRAP></WRAP></panel>

<panel type="info" title="Exercise - Quiz"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 88%> <quizlib id="quiz5" rightanswers="[[:a0_a1_a2_a3|'a0', 'a1', 'a2', 'a3']]" submit="check answers"> <question title="Statements about the conduction/valence band" type="checkbox"> Photon capture can move electrons from the conduction band to the valence band| "Recombination" removes an electron from the valence band and a hole from the conduction band| A donor creates one or more quasi-free electrons| The band gap indicates the maximum energetic distance between the conduction and valence bands </question></quizlib></WRAP></WRAP></panel>

<panel type="info" title="Exercise - Quiz"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 88%> <quizlib id="quiz6" rightanswers="[[:a0_a1|'a0', 'a1']]" submit="check answers"> <question title="The forward current …" type="checkbox"> … Is dependent on the temperature| … depends on the forward voltage| … is logarithmic concerning the forward voltage| … depends on the reverse voltage </question></quizlib></WRAP></WRAP></panel>