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Electronic Devices And Circuits MCQ Questions & Answers | ECE

Learn Electronic Devices And Circuits MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Electronic Devices And Circuits MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-2 section-2

Each section contains 100 MCQs on Electronic Devices and Circuits .
11
Which one of the following is used as a passive component in electronic circuit?
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Answer & Solution
Answer: Option A
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12
Which element has 10 electrons?
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Answer: Option B
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13
The n-p-n transistor made of silicon has a DC base bias voltage 15 V and an input base resistor 150 KΩ. Then value of the base current into the transistor is
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Answer: Option C
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14
MOSFET uses the electric field of
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Answer & Solution
Answer: Option A
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15
P - N junction diode is not used for
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Answer & Solution
Answer: Option B
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16
When the positive voltage on the gate of a p-channel JFET is increased, its drain current
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Answer: Option B
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17
When doping increases, . . . . . . . . of a semiconductor decreases
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Answer: Option C
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18
At a given temperature a semiconductor with intrinsic carrier concentration ni = 1016/m3 is doped with a donor of dopant concentration ND = 1026/m3. Temperature remaining the same the hole concentration in the doped semiconductor is
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Answer: Option D
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19
In a p-type semiconductor, the conductivity due to holes (σp) is equal to (e = charge of hole, µp = hole mobility, p = hole concentration).
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Answer & Solution
Answer: Option C
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20
In a transistor leakage current mainly depends on
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Answer: Option D
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