a) Basic Electronics: (1) The reverse current in a diode is of the order of [a] kA [b] mA [c] uA [d]Zero
Answers: 1. Options B and C 2. Option C only 3. Option D only 4. Option A and D only
Ans: 2
(2) The forward voltage drop across a diode is about…. [a] 2.5V [b] 3V [c] 10V [d] 0.7V
Ans: D
(3) A semiconductor diode is used as Options: [a] An amplifier [b] A Rectifier [c] An oscillator [d] A voltage regulator
Answers: 1. Options A and C 2. Option B only 3. A, B, C and D 4. Option D only
Ans: 2
(4) A semiconductor diode has….. [a] One PN junction [b] Two PN junction [c] Three PN junction [d] Four PN junction
Ans: A
(5) A semiconductor diode has forward resistance of order of ohms(22) Options: [a] kohms (K2) [b] 0.1 to 0.5 ohms [c] Mega ohms [d] milli ohms
Answers: 1. Option D only 2. Option B only 3. Options A, B, C and D 4. None of the above
Ans: 2
(6) If the arrow of diode symbol is positive with respect to bar, then the diode is…. biased [a] Forward [b] Reverse [c] Either forward or reverse [d] None of the above
Ans: A
(7) The leakage current in a diode is due to Options:[a] Minority Carriers [b] Majority Carriers [c] Junction Capacitance [d] None of the above
Answers: 1. Options A, B, C 2. Option B only 3. Options A and B only 4. Option A only
Ans: 4
(8) The DC resistance of a diode is ….. its AC resistance [a] Same as [b] More than [c] Less than [d] None of the above
Ans: C
(9) An ideal diode is one which behaves as a perfect…. when forward biased [a] Conductor [b] Insulator [c] Resistance material [d] None of the above
Ans : A
(10) If the temperature of the diode increases, then leakage current…. [a] Remains same [b] Decreases [c] Increases [d] Becomes zero
Ans: C
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