# In the circuit shown in the figure, Vs = Vm sin 2t and Z2 = 1= j. The value of C is shown such that the current I is in phase with Vs, the value of C in farad is

1.  ¼

2.  ½

3.   2

4.  4

4

¼

Explanation :
No Explanation available for this question

# The current I for the circuit shown will be

1.   3 m A

2.  2.81 m A

3.  6.16 m A

4.  10 m A

4

3 m A

Explanation :
No Explanation available for this question

# a point charge Q is located on the surface of a sphere of radius R as shown in the figure. The average electric field on the surface of the sphere will be

1.  finite

2.  a/4π0 1/R2()

3.  a/8π0 1/R2 (?)

4.  zero

4

a/8π0 1/R2 (?)

Explanation :
No Explanation available for this question

# Which one of the following statements regarding the state transmition matrix is correct

1.   (0) = 0

2.  -1 (t) = (1/t)

3.  (t1+t2) = (t1) + (t2)

4.  (t2-t1) (t1- t0) = (t2-t0)

4

(t2-t1) (t1- t0) = (t2-t0)

Explanation :
No Explanation available for this question

# An electric dipole of moment P is placed in front of a grounded sphere as shown in the figure. The charge induced on the surface of the sphere is

1.  zero

2.  PR/d2

3.  PR2/d3

4.  PR3/d4

4

PR/d2

Explanation :
No Explanation available for this question

# Total offset voltage for the circuit shown below with given input offset voltage VIO = 4 mV, and the input offset current IIO = 150 m A will be

1.  404 m V

2.  479 m V

3.  329 m V

4.  zero

4

479 m V

Explanation :
No Explanation available for this question

# At a certain current, the energy stored in iron cored coil is 1000 J and its copper loss is 2000 W. the time constant (in seconds) of the coil is

1.  0.25

2.  0.5

3.  1.0

4.  2.0

4

1.0

Explanation :
No Explanation available for this question

# The output voltage of an OPAMP for input of V11 = 150 μ V, V12 = 140 μ V if the amplifier has a differential gain Ad = 4000 and the value of CMRR is 100, is

1.  45.8 m V

2.  40.006 m V

3.  10 μ V

4.  145 μ V

4

45.8 m V

Explanation :
No Explanation available for this question

# The open-circuit voltage ratio V2(s)/V1(s) of the network shown in the given figure is

1.  1+ 2s2

2.  1/1+ 2s2

3.  1+2s

4.  1/1+ 2s

4

1/1+ 2s2

Explanation :
No Explanation available for this question

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