Description

This mock test of Digital Electronics NAT Level - 1 for Physics helps you for every Physics entrance exam.
This contains 10 Multiple Choice Questions for Physics Digital Electronics NAT Level - 1 (mcq) to study with solutions a complete question bank.
The solved questions answers in this Digital Electronics NAT Level - 1 quiz give you a good mix of easy questions and tough questions. Physics
students definitely take this Digital Electronics NAT Level - 1 exercise for a better result in the exam. You can find other Digital Electronics NAT Level - 1 extra questions,
long questions & short questions for Physics on EduRev as well by searching above.

*Answer can only contain numeric values

QUESTION: 1

If the memory chip size is 256 x 1 bits, what is the number of chips required to make 1 up 1K byte of memory

Solution:

1 byte = 8 bits

1**K** byte = 1024 bits

1**K** byte = 1024 x 8 bit

Number of chips =

The correct answer is: 32

*Answer can only contain numeric values

QUESTION: 2

The number 6.25 in the decimal notation, when converted to the binary notation will read as ?

Solution:

Hence, 6 =110

Now 0.25 x 2 = 0.50 → 0

0.50 x 2 = 1.00 → 1

0.00 x 2 = 0 → 0

Hence, 0.25 = 0.010 →1

Hence (6.25)_{2} = 110.010

The correct answer is: 110.01

*Answer can only contain numeric values

QUESTION: 3

What must be the output if A = 1 , B = 0, C = 1 ?

Solution:

Hence, output = 1

The correct answer is: 1

*Answer can only contain numeric values

QUESTION: 4

In the given circuit, if the inputs A = B = 0, then what is the output of D ?

Solution:

A = B = 0

Logic states of **C** and **D** will be 0, 0

The correct answer is: 0

*Answer can only contain numeric values

QUESTION: 5

The function F generated by the logic network shown gives what output for

Solution:

Hence gives

The correct answer is: 0

*Answer can only contain numeric values

QUESTION: 6

The Boolean expression is equivalent to ?

Solution:

The correct answer is: 0

*Answer can only contain numeric values

QUESTION: 7

The below logic circuit gives what output, if V_{1 }= 0, V_{2} = 1 ?

Solution:

The above circuit behaves as a** NAND** gate.

The correct answer is: 1

*Answer can only contain numeric values

QUESTION: 8

If two input terminals of NAND gate are shorted, then the output for both the input being zero is ?

Solution:

If **A** and **B** are joined, then

This behaves like a **NOT** gate.

The correct answer is: 1

*Answer can only contain numeric values

QUESTION: 9

An OPAMP is connected in a circuit with a Zener diode as shown in the figure. The value of resistance R in kfl for obtaining a regulated output V_{o} = 9 V is: (Specify your answer to two digits after the decimal point.)

Solution:

*Answer can only contain numeric values

QUESTION: 10

For the Boolean expression what will output for A= 1, B = 1, C = 0 ?

Solution:

The correct answer is: 0

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