Exercise: Networks Analysis And Synthesis

Questions for: Networks Analysis And Synthesis

In figure, the current after a long time after closing of switch is
A:
1 A
B:
2 A
C:
0
D:
infinity
Answer: B

At t = ∞ the circuit has effectively two 6Ω resistances in parallel.

📖
📝
💬
👁️
Two sinusoidal voltage sources v1 = 50 sin (100t) and v1 = 50 sin (100t + p) are connected in parallel and fed an inductance XL = 2Ω. The cuirent through XL is
A:
25 A
B:
about 17.5 A
C:
zero
D:
50 A
Answer: C

Since voltages have a phase difference of 180°, current is zero.

📖
📝
💬
👁️

Assertion (A): The function is not positive real.

Reason (R): The degrees of numerator and denominator differ by 2

A:
Both A and R are true and R is correct explanation of A
B:
Both A and R are true and R is not the correct explanation of A
C:
A is true but R is false
D:
A is false but R is true
Answer: A

If degrees of numerator and denominator differ by more than 1, the function is not positive real.

📖
📝
💬
👁️
If the diameter of a wire is doubled, the current carrying capacity of the wire becomes
A:
half
B:
twice
C:
four times
D:
one-fourth
Answer: C

Since diameter is doubled, area of cross-section becomes four times. Current carrying capacity is proportional to area of cross-section.

📖
📝
💬
👁️
If an admittance Y(s) has a term Ks, the realization would give
A:
an inductance of value K
B:
a resistance of value K
C:
a capacitance of value K
D:
either (a) or(c)
Answer: A

Admittance of a capacitance K is Ks.

📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz