# A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then the voltage across each resistor is

1.  halved

2.  doubled

3.   increased by four times

4.  not changed

4

not changed

Explanation :
No Explanation available for this question

# The impedance seen by the source in the circuit in the figure is given by

1.   (0.54 +j0.313) ohms

2.  (4 -j2) ohms

3.   (4.54-j 1.69) ohms

4.  (4+ j2) ohms

4

(4.54-j 1.69) ohms

Explanation :
No Explanation available for this question

# Currently I1,I2 and I3 meet at a junction (node) in a circuit. All currents are marked as entering the node. If I1= -6sin (wt)mA and I2 = 8 cos (wt) mA, then I3 will be

1.  10 cos (wt + 36.87) mA

2.  14 cos (wt + 36.87) mA

3.  -14 sin (wt + 36.87) mA

4.  10 cos (wt + 36.87) mA

4

10 cos (wt + 36.87) mA

Explanation :
No Explanation available for this question

# In an FET as VGS is changed from zero to increasing reverse bias, the value of gm

1.  Increased

2.  Decreased

3.  Remains constant

4.  Falls  suddenly to zero.

4

Decreased

Explanation :
No Explanation available for this question

# In the circuit given in the figure, if both transistor Q1 and Q2 are identical, then output voltage at T=300 K is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# For the clamping network shown below, resulting output for the applied input will be

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The transistor in the circuit shown is operating in

1.  Cut-off region

2.  Active region

3.  Saturation region

4.  Either in the active or saturation region.

4

Saturation region

Explanation :
No Explanation available for this question

# Thermal runway is not possible in FET because as the temperature of FET increases

1.  Mobility decreases

2.  Trans conductance increases

3.  Drain conductance increases

4.  None of these.

4

Mobility decreases

Explanation :
No Explanation available for this question

# All transistors in the circuit in the figure have parameters VTN=1V and π=0 The conduction parameters are as follows: Kn1=400μA/V2 Kn2=200μA/V2 Kn3=100μA/V2 Kn4=80μA/V2. ID1=

1.  0.23μmA

2.  0.62μMA

3.  0.46μmA

4.  0.31μmA.

4

0.62μMA

Explanation :
No Explanation available for this question

1.  0.23μmA

2.  0.62μMA

3.  0.46μmA

4.  0.31μmA

4