A circuit consisting of a 1Ω resistor and a 2 F capacitor in series is excited from a voltage source with the voltage expressed as 3e-4 as shown in the given figure, If i(0-) and V(0-) both are zero, then values of i(0+)and i(∞) will be respectively

1.  3 A and 1.5 A

2.  1.5 A and zero

3.  3 A and zero

4.  1.5 A and 3 A

View Answer  
4
Correct Answer :

3 A and zero


Explanation :
No Explanation available for this question

In the given circuit ,Vx is equal to

1.  9V

2.  – 9V

3.  10V

4.  – 10V

View Answer  
4
Correct Answer :

– 10V


Explanation :
No Explanation available for this question

If 3-phase balanced source in the given figure delivers 1500 W at a leading power factor of (0.844) then value of ZL (in ohm) is approximately

1.  90 < 32.440

2.  80 < 32.440

3.  80 < - 32.440

4.  90 < - 32.440

View Answer  
4
Correct Answer :

90 < - 32.440


Explanation :
No Explanation available for this question

In the delta equivalent of the given star connected circuit ZOR is equal to

1.  40 Ω

2.  ( 20 + j10 ) Ω

3.  (5 + j10/3) Ω

4.  ( 10 + j30 ) Ω

View Answer  
4
Correct Answer :

( 10 + j30 ) Ω


Explanation :
No Explanation available for this question

A delta connected network with Y- equivalent is shown below The resistances R1,R2,R3 (in ohm) are respectively

1.  1.5, 3 and 9

2.  3, 9 and 1.5

3.  9, 3 and 1.5

4.  3, 1.5 and 9

View Answer  
4
Correct Answer :

3, 1.5 and 9


Explanation :
No Explanation available for this question

Norton’s equivalent of circuit shown in Fig.(a) is drawn in the circuit shown in Fig.(b).The values of ISC and Req in Fig.(b) are respectively

1.  5/2 A and 2 Ω

2.  2/5 A and 3 Ω

3.  4/5 A and 12/5 Ω

4.  2/5 A and 2 Ω

5.  11

6.  12

7.  13

8.  14

View Answer  
8
Correct Answer :

12


Explanation :
No Explanation available for this question

The figure shows two different sets of input and output variables for the same two – port resistive network . Ix is

1.  -12 A

2.  -8 A

3.  -9 A

4.  - 3/2 A

View Answer  
4
Correct Answer :

-8 A


Explanation :
No Explanation available for this question

For the 2-port network shown in the figure, parameter h21 is given by

1.  -1/2

2.  1/2

3.  -3/2

4.  3/2

View Answer  
4
Correct Answer :

-1/2


Explanation :
No Explanation available for this question

Two two –port networks are connected in cascade . The combination is to be represented as a single two –port network . The parameters of the network are obtained by multiplying the individual

1.  z-parameter matrix

2.  h- parameter matrix

3.  y- parameter matrix

4.  ABCD parameter matrix

View Answer  
4
Correct Answer :

ABCD parameter matrix


Explanation :
No Explanation available for this question

The open circuit impedance matrix of the 2 port network shown in the figure is

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question
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