# The gain of the dual Op-Amp instrumentation amplifier circuit is shown in the figure below, is adjustable by means of a single resistor RG then output voltage of the circuit is

1.

2.

3.

4.  None

4

Explanation :
No Explanation available for this question

# Find Q – point (VCEQ, ICQ ) for the circuit shown below of the current gain of the transistor is low

1.  7.51 V, 2.27mA

2.  2.51V, 2.27mA

3.  7.51 V, 0.227mA

4.  2.51 V, 0.227mA

4

7.51 V, 0.227mA

Explanation :
No Explanation available for this question

# In a common-emitter amplifier with a non-zero sourse resistance ( Rs ), the voltage gain band width product reduces as Rs increases because

1.  The input time constant increases

2.  The output time constant increases

3.  The voltage gain reduces

4.  The input resistance increases

4

The voltage gain reduces

Explanation :
No Explanation available for this question

# The circuit a 555 timer IC connected as an astable multivibator. The value of the capacitor C is 10 nF. The value of the resistor RA & RB for a frequency of 10 KHs and a duty cycle of 0.75 for the output voltage wave form are

1.  RA = 3.62 K, RB = 3.62 K?

2.  RA = 3.62 K?, RB = 7.25 K?

3.  RA = 725 K?, RB = 3.62 K?

4.  RA = 7.25 K?, RB = 7.25 K?

4

RA = 725 K?, RB = 3.62 K?

Explanation :
No Explanation available for this question

# For the circuit shown below , if the current gain of transistors Q1 & Q2 is 100, then the output voltage VE2 of transistor Q2 is (Assume that both transistors are operating in active mode)

1.  0.29 V, 3.15mV

2.  0.29 V, 1.4mA

3.  8.7 V, 3.15 mV

4.  8.7 V, 1.4mA

4

0.29 V, 3.15mV

Explanation :
No Explanation available for this question

# At high frequency in the active region of operation, the collector base capacitance is due to the

1.  Diffusion charge in the emitter

2.  Diffusion charge in base

3.  Emitter-collector transition region

4.  Base-collector transition region

4

Base-collector transition region

Explanation :
No Explanation available for this question

# Which of the following represents the frequency of oscillation of oscillation in rad/sec.

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# For the rectifier circuit shown below, if the input wave is a triangular wave of 20 Vpp with zero average time value, R = 1kΩ, and diode is considered to be piece wise linear model with Vr=0.6V,R0-20Ω.Then output of the rectifier circuit is

1.

2.

3.

4.  None

4

Explanation :
No Explanation available for this question

# If R = 10kΩ, C = 10PF, and CV is variable, between 10 and 50PF, then range of oscillator frequency of

1.  480KHz f

2.  318KH2

3.  0.65MHz F

4.  None

4

480KHz f<919KHz

Explanation :
No Explanation available for this question

# Consider the following statement regarding unity gain frequency ( fT ) 1. It is that frequency at which gain become 0 dB 2. It is defined as the produces of amplifier gain and 3-dB frequency Which of the above statements is/are correct

1.  1 only

2.  2 only

3.  Both 1 and 2

4.  Either 1 nor 2

4