NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1707 - 1712 of 2184

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Question number: 1707

» Electronic Devices » Logic Gates (Or, and, NOT, NAND and Nor)

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MCQ▾

Question

The following truth table corresponds to the logic gate

Truth table corresponds to logic gate

Here table describe the inputs and output truth table to logic gate

A

B

X

0

0

0

0

1

1

1

0

1

1

1

1

Choices

Choice (4) Response

a.

NAND

b.

OR

c.

XOR

d.

AND

Question number: 1708

» Electronic Devices » Junction Transistor

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MCQ▾

Question

In a transistor in CE configuration, the ratio of power gain to voltage gain is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1709

» Electronic Devices » Junction Transistor

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MCQ▾

Question

In the case of constants α and β of a transistor

Choices

Choice (4) Response

a.

α = β 2

b.

β > l, α < 1

c.

β < l, α > l

d.

α = β

Question number: 1710

» Electronic Devices » Logic Gates (Or, and, NOT, NAND and Nor)

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MCQ▾

Question

In the case of a common emitter transistor as/an amplifier, the ratio is 0.96, then the current gain (β) of the amplifier,

Choices

Choice (4) Response

a.

12

b.

48

c.

24

d.

6

Question number: 1711

» Electronic Devices » Junction Transistor

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MCQ▾

Question

A NPN transistor conducts when

Choices

Choice (4) Response

a.

Collector is positive and emitter is negative with respect to the base

b.

collector and emitter are positive with respect to the base

c.

Collector is positive and emitter is at same potential as the base

d.

collector and emitter are negative with respect to the base

Question number: 1712

» Electronic Devices » Junction Transistor

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MCQ▾

Question

In NPN transistor the collector current is 10 mA . If 90 % of electrons emitted reach the collector, then

Choices

Choice (4) Response

a.

Emitter current will be 9 mA

b.

Emitter current will be 11.1 mA

c.

Base current will be 0.01 mA

d.

Base current will be 0.1 mA