Question 11 : Which of the following currents in a BJT is also called leakage current?
1. I_C
2. I_E
3. I_CO
4. I_CBO
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Question 12 : The collector current in a BJT is temparature-independent.
1. True
2. False
3.
4.
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Question 13 : What is the typical order of magnitude of the base current for a BJT?
1. 10 ^-8
2. 10 ^-9
3. 10 ^-6
4. 10 ^-3
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Question 14 : Considering the resistances of emitter, collector and base to be R_e, R_c and R_b respectively, which of the following is the correct statements?
1. R_e > R_b > R_c
2. R_c > R_b > R_e
3. R_b > R_c > R_e
4. R_b = R_c > R_e
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Question 15 : In a BJT, the outer layers are much more thick as compared to the middle layer.
1. True
2. False
3.
4.
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Question 16 : Which of the following is not a valid type of a BJT?
1. PNP
2. NPN
3. PPN
4. NNP
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Question 17 : For common emitter configuration, which of the following is the correct relation?
1. I_C < I_E
2. I_C = βI_B
3. I_C = αI_E
4. I_C = I_E
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Question 18 : The value of I_C is precisely zero when the value of I_E is zero.
1. True
2. False
3.
4.
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Question 19 : Which of the following correctly determines the relation between α and β?
1. β=α/(1-α)
2. α=β/(1-α)
3. β=α/(1-β)
4. β=α*(1-β)
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Question 20 : In a BJT, if the collector-base junction and the base-emitter junction are both reverse-biased, which region is the BJT operating in?
1. Saturation region
2. Active region
3. Cutoff region
4. Reverse active region
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