If the Fourier Transform of a deterministic signal g(t) is G(f) then that of g(-2) is

1.  G(f)ej4πf

2.  G(f)e-j4πf

3.  G(2f)

4.  G(f-2)

View Answer  
4
Correct Answer :

G(f)e-j4πf


Explanation :
No Explanation available for this question

1.  (-1/10) A/S

2.   +10 A/S

3.   +(1/10) A/S

4.  -10A/S

View Answer  
4
Correct Answer :

(-1/10) A/S


Explanation :
No Explanation available for this question

If=8A,=4A,=3A,=6Athen what will be the value of

1.  5A

2.  4A

3.   3A

4.  8A

View Answer  
4
Correct Answer :

5A


Explanation :
No Explanation available for this question

Various time constants for the circuit are given below Chose the charging and discharging times respectively from among a. 0.5msec b. 7.5msec c. 3.75msec d. 1msec

1.  a, b

2.   a, c

3.   b, c

4.  b, d

View Answer  
4
Correct Answer :

b, c


Explanation :
No Explanation available for this question

What will be

1.  -100 A/S2

2.   -100 100 A/S2

3.   +100 100 A/S2

4.   None

View Answer  
4
Correct Answer :

-100 100 A/S2


Explanation :
No Explanation available for this question

In the network shown in the figure below, the potential at p, at the instant of closing the switch S and 10 second after closing S will respectively be

1.  0Vand 63.2V

2.   100V and 63.2V

3.   0V and 36.8V

4.  100V and 36.8V

View Answer  
4
Correct Answer :

100V and 36.8V


Explanation :
No Explanation available for this question

Initially the circuit shown in the figure was relaxed. If the switch is closed at t=0 the value of i(0+), will respectively be

1.  0, 10, -100

2.  0, 10, 100

3.  10, 100, 0

4.   100, 0, 10

View Answer  
4
Correct Answer :

0, 10, -100


Explanation :
No Explanation available for this question

A series R-C circuit (with zero initial condition) excited by a periodic square voltage source will give

1.  Square wave voltage drops across both R and C

2.   Non-square wave voltage drops across both R and C

3.   Square wave drop across R but non-square voltage drop across C

4.   None of these

View Answer  
4
Correct Answer :

Non-square wave voltage drops across both R and C


Explanation :
No Explanation available for this question

A series RL circuit with R=100, L=50H is supplied by a dc source of 100V. The time taken by the current to rise 70% of its steady state value is

1.  0.3 sec

2.   0.6 sec

3.   2.4 sec

4.   3 sec

View Answer  
4
Correct Answer :

0.6 sec


Explanation :
No Explanation available for this question

If the reference phasor is taken asthen of the following is true leads from For R=0,leads For R=∞,lags fromand leads from

1.  Only (1)

2.  Only (1) and (2)

3.  Only (1) and (3)

4.  All are true

View Answer  
4
Correct Answer :

All are true


Explanation :
No Explanation available for this question
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