The input signal given to a CE amplifier having a voltage gain of 150 is Vi=2 cos (15t+π/3). The corresponding output signal will be
Options
(a) 75 cos(15t+2π/3) (b) 2 cos(15t+5π/6) (c) 300 […]
In the given figure, a diode D is connected to an external resistance R=100 Ω and an e.m.f. of 3.5 V. If the barrier potential developed across the diode is 0.5 V, the current in […]
If in a p-n junction, a square input signal of 10 V is applied as shown, then the output across Rʟ will be
Options
(a)
(b)
(c)
(d)
Correct […]
Which logic gate is represented by the following combination of logic gate?
Options
(a) NAND (b) AND (c) NOR (d) OR
Correct Answer:
AND
Explanation:
No explanation available. Be the first to write […]
The given graph represents V-I characteristic for a semiconductor device.
Which of the following statement is correct?
Options
(a) It is V-I characteristic for solar cell, where point A represents open circuit […]
The barrier potential of a p-n junction depends on (1) type of semiconductor material (2) amount of doping (3) temperature Which one of the following is correct?
Options
(a) (1) and (2) only […]
The number of NAND gates required to form an AND gate is
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
2
Explanation:
No explanation available. Be the first to write […]
The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be
Options
(a) 1.25 (b) 100 (c) 90 (d) 10
Correct Answer:
100
Explanation:
One […]
One way in which the operation of a n-p-n transistor differs from that of a p-n-p
Options
(a) the emitter junction is reserved biased in n-p-n (b) the emitter junction injects minority carriers […]
In an unbiased p-n junction, holes diffuse from the p-region to n-region because of
Options
(a) the potential difference across the p-n junction (b) the attraction of free electrons of n-region (c) the […]
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