# In a regulated power supply using zener diode the unregulated input voltage as compared to the regulated output voltage must be

1.  Equal

2.  Smaller

3.  Larger

4.  Larger with opposite polarity

4

Larger

Explanation :
No Explanation available for this question

# The equivalent inductance of the following network is

1.  14H

2.  12H

3.  16H

4.  None of these

4

14H

Explanation :
No Explanation available for this question

# If i=αI1+βI2 in the network shown above then (α, β) is

1.  (2/45, 2/47)

2.  (2/17, 2/45)

3.  (1/15, 1/17)

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# In the figure Shown below D1 has reverse saturation current of 20A and reverse breakdown voltage of 100v,corresponding values for D2 are 50A and 50v.The current in the circuit is

1.  20A A to B

2.  20A B to A

3.  50A A to B

4.  50A B to A

4

50A A to B

Explanation :
No Explanation available for this question

# Here f(x) and g(x) are the functions of x.They are chosen in such a way that current through xresistor is minimum. If f(x)=2x3-9x2 and g(x)=-3x+4x2 then x is

1.  -3/2

2.  3/2

3.  -1/2

4.  None of these

4

3/2

Explanation :
No Explanation available for this question

# The saturation currents of the two diodes are 1 and 2A.The breakdown voltages of the diodes are he same and are equal to 100v The current in the diode D1,if V=90V is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Here f(x) and g(x) are the functions of x.They are chosen in such a way that current through xresistor is minimum. If f(x)=2x3-9x2 and g(x)=-3x+4x2 of Ix due to f(x) and g(x) is

1.  (-27/8) A, (9/8) A

2.  (-9/8) A, (-27/8) A

3.  (-9/8) A, (27/8) A

4.  (27/8) A, (9/8) A

4

(-27/8) A, (9/8) A

Explanation :
No Explanation available for this question

# The current in the diode D1 of questions 12,if V =110v is

1.

2.

3.

4.  None

4

None

Explanation :
No Explanation available for this question

# If VBE=0.6V, then the collector current Ic is

1.  368A

2.  1.6 A

3.  3.68A

4.  36.8A

4

368A

Explanation :
No Explanation available for this question

1.  36.8

2.  368

3.  18.4

4.  184

4