# 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)

4

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

4

(-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

4

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

4

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

4

-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

4

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

4

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

4

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

4

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

4