# If network A has voltage source that is controlled by the network then is it possible to find Thevenin equivalent at X, Y, terminal

1.  Yes

2.  No

3.  Sometimes but not always

4.  Depends up on the initial condition

4

No

Explanation :
No Explanation available for this question

# For a emitter base junction width JE and base collector junction width Jc, which of the following statement is correct

1.  JE=Jc

2.  JE>Jc

3.  Jc>JE

4.  JE=0, Jc is a large

4

Jc>JE

Explanation :
No Explanation available for this question

# An operational amplifier is

1.  A direct coupled amplifier

2.  An indirect coupled amplifier

3.  A high gain amplifier

4.  Both A & C

4

Both A & C

Explanation :
No Explanation available for this question

# An ideal op-amp has

1.  Infinite output impedance

2.  Zero output impedance

3.  Low voltage gain

4.  Zero input impedance

4

Zero output impedance

Explanation :
No Explanation available for this question

# Match the various modes in BJT MODE Bias (a) Reverse action 1. EB forward CB forward (b)Cut off 2. EB reverse CB forward (c) Saturation 3. EB forward CB reverse (d) Forward active 4. EB reverse CB reverse

1.  a-1,b-2,c-3,d-4

2.  a-2,b-4,c-1,d-3

3.  a-4,b-2,c-1,d-3

4.  a-3,b-2,c-4,d-1

4

a-2,b-4,c-1,d-3

Explanation :
No Explanation available for this question

# A non-inverting op-amp has voltage gain of

1.  [1+(Rf/R1)]

2.  (Rf/R1)

3.  -(Rf/R1)

4.  None of these

4

[1+(Rf/R1)]

Explanation :
No Explanation available for this question

# What should be ‘a’ for maximum power transfer

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The given circuit is

1.  A differentiator

3.  A voltage to current converter

4.  A difference amplifier

4

A difference amplifier

Explanation :
No Explanation available for this question

# Push-pull amplifiers are used to

1.  Eliminate harmonic components in the low frequency range

2.  Eliminate harmonic in the high frequency range

3.  Add harmonic components in the Audio frequency range

4.  None of these

4

Eliminate harmonic components in the low frequency range

Explanation :
No Explanation available for this question

# In BJT, the base spreading resistance is of the order of

1.  Double for every 100 C rise in temperature

2.  Double for every 10 C rise in temperature

3.  Increases linearly with temperature

4.  Doubles for every 500C rise in temperature

4