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Q1. | A passive 2-port network is in a steady-state. Compared to its input, the steady state output can never offer |

A. | higher voltage [Wrong Answer] |

B. | lower impedance [Wrong Answer] |

C. | greater power [Correct Answer] |

D. | better regulation [Wrong Answer] |

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**Also Read Similar Questions Below :**

⇒ The first and last critical frequency of an RC-driving point impedance function must respectively be

a zero and a pole

a zero and a zero

a pole and a pole

a pole and a zero

⇒ A star circuit has element of resistance R/2. The equivalent delta elements will be

R/6

3/2R

2R

4R

⇒ A voltage source having an open-circuit voltage of 100 V and internal resistance of 50 ω is equivalent to a current source

2 A in parallel with 50 ω.

2 A with 50 ω in series

0.5 A in parallel with 50 ω

A in parallel with 100 ω

⇒ Pole of a network is a frequency at which

network function becomes zero.

network function becomes infinite.

network function becomes unity.

none of these.

⇒ Efficiency of power transfer when maximum transfer of power occurs is

100%

80%

75%

50%

⇒ An electric circuit with 10 branches and 7 nodes will have

3 loop equations.

4 loop equations

7 loop equations

10 loop equations.

⇒ In a balanced Wheatstone bridge, if the positions of detector and source are interchanged, the bridge will still remain balanced. This inference can be drawn from

reciprocity theorem.

duality theorem.

compensation theorem.

equivalence theorem.

⇒ Kirchhoff's voltage law is concerned with

IR drop.

battery emf.

junction voltage.

both (a) and (b).

⇒ Thevenin resistance R

_{th}is found

by removing voltage sources along with their internal resistances

by short-circuiting the given two terminals

between any two 'open' terminals

between same open terminals as for E

_{th}

⇒ If the number of branches in a network is 'B', the number of nodes is 'N' and the number of dependent loops is 'L' then the number of independent node equations will be

N + L - 1

B - 1

B - N

N - 1

⇒ A non-linear network does not satisfy

superposition condition

homogeneity condition

both homogeneity as well as superposition condition

homogeneity, superposition and associative condition

⇒ For a linear network containing generators and impedances, the ratio of the voltage to the current produced in other loop is the same as the ratio of voltage and current obtained if the positions of the voltage source and the ammeter measuring the cuiTent are interchanged. The network theorem is known as

Millman's theorem.

Norton's theorem.

Tellegen's theorem.

Reciprocity theorem.

⇒ Which of the following is linear and bilateral parameter ?

resistors

semi-conductor diodes

electron tubes

transistor

⇒ To determine the polarity ofthe voltage drop across a resistor, it is necessary to know

value of current through the resistor

direction of current through the resistor

value of resistor

e.m.fs. in the circuit

⇒ Which of the following theorems can be applied to any network linear or nonlinear, active or passive, time-variant or time-invariant?

Thevenin theorem

Norton theorem

Tellegen theorem

Superposition theorem

⇒ Millman's theorem yields

equivalent resistance

equivalent impedance

equivalent voltage source

equivalent voltage or current source

⇒ An ideal voltage source should have

large value of emE

small value of e.m.f.

zero source resistance

infinite source resistance

⇒ While calculating R

_{th}in Thevenin's theorem and Norton equivalent

all independent sources are made dead

only current sources are made dead

only voltage sources are made dead

all voltage and current sources are made dead

⇒ Kirchhoff's current law states that

net current flow at the junction is positive

algebraic sum of the currents meeting at the junction is zero

no current can leave the junction without some current entering it.

total sum of currents meeting at the junction is zero

⇒ The graph of an electrical network has N nodes and B branches. The number of links, L, with respect to the choice of a tree, is given by

B - N + l

B + N

N - B + 1

N - 2B - 1

⇒ Ideal current source have

zero internal resistance.

infinite internal resistance.

low value of voltage.

large value of current.

⇒ If a circuit does not contain any source of energy or e.m.f. it is known as

unilateral circuit

bilateral circuit

passive network

active network

⇒ Kirchhoff's current law is applicable to only

junction in a network

closed loops in a network

electric circuits

electronic circuits

⇒ The circuit whose properties are same in either direction is known as

unilateral circuit

bilateral circuit

irreversible circuit

reversible circuit

⇒ According to Kirchhoff's voltage law, the algebraic sum of all IR drops and e.m.fs. in any closed loop of a network is always

negative

positive

determined by battery e.m.fs.

zero

⇒ For maximum transfer of power, internal resistance of the source should be

equal to load resistance

less than the load resistance

greater than the load resistance

none of the above

⇒ A human nerve cell has an open-circuit voltage of 80 mV and it can deliver a current of 5 nA through a 6 M ohm load. What is the maximum power available from the cell?

0.16 nW

16 mW

1.6 W

16 pW

⇒ The number of independent equations to solve a network is equal to

the number of chords

the number of branches

sum of the number of branches and chords

sum of number of branches, chords and nodes

⇒ When the power transferred to the load is maximum, the efficiency of power transfer is

25%.

75%.

50%.

100%.

⇒ Kirchhoff's s law is applicable to

passive networks only

a.c. circuits only

d.c. circuits only

both ac. as well d.c. circuits