# Output of a negative clamper for the given input will be

1.

2.

3.

4.  None of these

4
Correct Answer :

Explanation :
No Explanation available for this question

# In a silicon the concentration of thermally generated electrons at room temperature is of the order of

1.  108 cm-3

2.  1010cm-3

3.  1013cm-3

4.  1015cm-3

4
Correct Answer :

1015cm-3

Explanation :
No Explanation available for this question

# Imperfections in the crystal structure results in

1.  Increased Conductivity

2.  Decreased Conductivity

3.  Increased Mobility

4.  Decreased Mobility

4
Correct Answer :

Decreased Mobility

Explanation :
No Explanation available for this question

# A rectifier output is a

1.  A pure d.c signal

2.  A pure a.c signal

3.  A partial d.c signal

4.  A pulsating d.c signal

4
Correct Answer :

A pulsating d.c signal

Explanation :
No Explanation available for this question

# In a Intrinsic semiconductor, the concentration of charge carrier equals

1.  A0T2exp(-Ego/KT)

2.  A0T2exp(-Ego/KT)

3.  A0Texp(-Ego/KT)

4.  A0T3/2exp(-Ego/KT)

4
Correct Answer :

A0T3/2exp(-Ego/KT)

Explanation :
No Explanation available for this question

# Ripple factor of a half-wave rectifier is

1.  1.21

2.  0.58

3.  0.48

4.  0.812

4
Correct Answer :

1.21

Explanation :
No Explanation available for this question

# If ND and NA are the donor and acceptor concentration and ND>NA, then the net impurity concentration is

1.  ND-NA

2.  ND+NA

3.  ND

4.  NA

4
Correct Answer :

ND-NA

Explanation :
No Explanation available for this question

# Bridge rectifier is normally avoided

1.  In high voltage rectification

2.  In low voltage rectification

3.  In all types of voltage rectification

4.  In square wave rectification

4
Correct Answer :

In low voltage rectification

Explanation :
No Explanation available for this question

# Velocity of an electron is

1.  Proportional to Mobility

2.  Inversely Proportional to Mobility

3.  constant

4.  Proportional to square of Mobility

4
Correct Answer :

Proportional to Mobility

Explanation :
No Explanation available for this question

# Practically efficiency is maximum for

1.  CTFWR (Centre tapped FWR)

2.  Bridge FWR

3.  HWR

4.  Both (A) & (B)

4
Correct Answer :

CTFWR (Centre tapped FWR)

Explanation :
No Explanation available for this question

## Interview Questions

 MongoDB Java Script Node JS PHP JQuery Python