# The boolean function A + BC is a reduced form of

1.  AB + BC

2.  (A + B).(A + C)

3.

4.  (A + C).B

4

(A + B).(A + C)

Explanation :
No Explanation available for this question

# A DC voltage source is connected across a series R-L-C.Under steady-state reaches, the ratio of the energy stored in the capacitor to the total energy supplied by the voltage source, is equal to

1.  R only

2.  L only

3.  C only

4.  R and L combination

4

C only

Explanation :
No Explanation available for this question

# Consider a DC voltage coils are connected to a series R-C circuit. When the steady-state reaches, the ratio of the energy stored in the capacitor to the total energy supplied by the voltage source, is equal to

1.  0.362

2.  0.500

3.  0.632

4.  1,000

4

0.500

Explanation :
No Explanation available for this question

# Two 2 H inductance coils are connected in series and are also magnetically coupled to each other the coefficient of coupling being 0.1.The total inductance of the combination can be

1.  0.4H

2.  3.2H

3.  4.0H

4.  3.3H

4

3.3H

Explanation :
No Explanation available for this question

# The RMS value of a rectangular wave of period T,having a value of +V for a diuration,T1(< T) and –V  for the duration ,T-T1=T2 ,equals to

1.  V

2.  (T1-T2)V/T

3.  V/√2

4.  T1V/T2

4

V

Explanation :
No Explanation available for this question

# If L[f(t)]=2(s+1)/(s2+2s+5) then f(0+) and f(∞) are given by

1.  0,2 respectively

2.  2,0 respectively

3.  0,1respectively

4.  2/5,0 respectively

4

2,0 respectively

Explanation :
No Explanation available for this question

# The current ,i(t),through a 10Ω resistor in series with an inductance ,is given by i(t)=3+4sin (100t+450)+4sin(300t+600)ampere The RMS value of the current and the power dissipated in the circuit are:

1.  √41 A,410W,respectively

2.  √35 A,350W,respectively

3.   5A,250W,respectively

4.  11A,1210W,respectively

4

5A,250W,respectively

Explanation :
No Explanation available for this question

# Signal flow graph is used to find

1.  stability of the system

2.  controllability of the system

3.   transfer function of the system

4.  poles of the system

4

transfer function of the system

Explanation :
No Explanation available for this question

# The step error coefficient of a system G(s)=1/(s+6))s+1) with unity feedback is

1.  1/6

2.  ∞

3.  0

4.  1

4

1/6

Explanation :
No Explanation available for this question

# The final value theorem is used to find the

1.  steady state value of the system output

2.  initial value of the system of the system output

3.  transient behavior of the system output

4.  none of these

4