Electronics and Communication Engineering - Electronic Devices and Circuits

11. 

Figure shows the terminals of a transistor in plastic package TO 18. Then

A. terminals 1, 2, 3 are emitter, collector, base respectively
B. terminals 1, 2, 3 are emitter, base, collector respectively
C. terminals 1, 2, 3 are base, emitter collector, respectively
D. terminals 1, 2, 3 are collector, emitter, base respectively

Answer: Option B

Explanation:

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12. 

The network shown in the figure represents a

A. band pass filter
B. low pass filter
C. high pass filter
D. band stop filter

Answer: Option A

Explanation:

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13. 

In a bipolar transistor, the emitter base junction has

A. forward bias
B. reverse bias
C. zero bias
D. zero or reverse bias

Answer: Option A

Explanation:

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14. 

Which of these has semi-conductor metal junction?

A. PIN diode
B. Photo diode
C. Tunnel diode
D. Schottky diode

Answer: Option D

Explanation:

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15. 

The ripple factor of power supply is a measure of

A. its filter efficiency
B. diode rating
C. its voltage regulation
D. purity of power output

Answer: Option D

Explanation:

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