# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1697 - 1700 of 2320

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## Question number: 1697

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

De-morgen’s theorem may be explained by the following circuit

### Reason (Ꭱ)

In the following circuit, for output 1 inputs A, B, C are 1,0, 1.

### Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

## Question number: 1698

Edit
MCQ▾

### Question

In an NPN transistor circuit, the collector current is 10 mA. If 90 % of the electrons emitted reach the collector, the emitter current (I E) and base current (I B) are given by

### Choices

Choice (4)Response

a.

I E = 9mA, I B =- 1mA

b.

I E = 1mA, I B = 11mA

c.

I E =- 1mA, I B = 9mA

d.

I E = 11mA, I B = 1mA

## Question number: 1699

Edit
MCQ▾

### Question

If L 1, L 2, L 3 are the lengths of the emitter, base and collector of a transistor then,

### Choices

Choice (4)Response

a.

L 1 > L 3 > L 2

b.

L 3 < L 1 < L 2

c.

L 3 < L 2 > L 1

d.

L 1 = L 2 = L 3

## Question number: 1700

Edit
MCQ▾

### Question

Given below are four logic gates symbol (figure). Those for OR, NOR and NAND are respectively

### Choices

Choice (4)Response

a.

b.

c.

d.

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