Electronics (GATE Physics): Questions 9 - 12 of 32

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Question number: 9

» Electronics » Registers

Appeared in Year: 2015

MCQ▾

Question

Which one of the following DOES NOT represent an exclusive OR operation for input A and B?

Choices

Choice (4) Response

a.

(A+B)(A¯+B¯)

b.

(A+B)AB

c.

(A+B)AB¯

d.

AB¯+BA¯

Question number: 10

» Electronics » Bipolar Junction Transistors

Appeared in Year: 2015

Short Answer Question▾

Write in Short

In the simple current source shown in the figure, Q1 and Q2 are identical transistors with current gain β=100 and VBE=0.7V .

Current mirror circuit

Current Mirror Circuit

The circuit is shows the current mirror circuit consists of Q1 and Q2 are two identical transistors.

The current I0(inmA) is ________ (upto two decimal places)

Question number: 11

» Electronics » Semiconductor Devices

Appeared in Year: 2015

MCQ▾

Question

In a Hall Effect experiment, the Hall voltage for an intrinsic semiconductor is negative. This is because – (Symbols carry usual meaning)

Choices

Choice (4) Response

a.

μe>μh

b.

me*>mh*

c.

n=p

d.

n>p

Question number: 12

» Electronics » Basic Digital Logic Circuits

Appeared in Year: 2016

MCQ▾

Question

For the digital circuit given below, the output X is –

Digital circuit of three different gates

Digital Circuit of Three Different Gates

In figure a digital circuit diagram of three gates NOT, OR and NAND are shown.

Choices

Choice (4) Response

a.

A+BC¯

b.

A¯(B+C)¯

c.

A¯+BC¯

d.

A¯(B+C)

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