Silicon Diode

Topics: Semiconductor, Diode, P-n junction Pages: 4 (1012 words) Published: November 30, 2013
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) A molecule is the smallest particle of an element that retains the characteristics of that element. 2) A conducting germanium diode has a potential of about 0.7 V across it. 3) Silicon doped with impurities is used in the manufacture of semiconductor devices. 4) Reverse bias permits full current through a pn junction. 5) Semiconductor material of the p-type has few free electrons. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 6) The application of a dc voltage to control diode conduction is called A) a pn junction. B) bias. C) amplification. D) oscillation. 6)

7) Holes are the majority carriers in A) a p-type semiconductor. B) a pn junction semiconductor. C) an n-type semiconductor. D) None of the above. 7)
8) Semiconductor materials are those with A) conductive properties that are in between those of a conductor or an insulator. B) no conductive properties. C) conductive properties that are very good. D) Either A or B. 8)

9) There is current through the junction of a forward -biased diode. This current is called A) forward current. B) reverse breakdown current. C) reverse leakage current. D) avalanche current. 9)
10) A typical value of reverse breakdown voltage in a diode is A) 50 V or larger. B) 0.3 V. C) 0.7 V. D) 0 V. 10)
11) The small current when a diode is reverse -biased is called A) conventional current. B) reverse breakdown current. C) forward -bias current. D) reverse -leakage current. 11)
12) As the forward current through a forward-biased diode decreases, the voltage across the diode A) increases and then decreases. B) is relatively constant. C) increases. D) immediately drops to 0 V. 12)

13) Which statement best describes a p-type semiconductor? A) A material where holes are the minority carriers. B) Silicon with pentavalent impurity. C) Silicon with...
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