# As a network contains only independent current sources and resistors then if the values of all resistors are

18 views
As a network contains only independent current sources and resistors then if the values of all resistors are doubled then the values of the node voltages are

(A) will become half (B) will remain unchanged (C) will become double (D) cannot be determined unless the circuit configuration and the values of the resistors are known.

As a network contains only independent current sources and resistors then if the values of all resistors are doubled then the values of the node voltages are will become double

## Related questions

A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the voltage across each resistor will

A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then voltage across each resistor is  A) Halved B) Doubled C) Increases by 4 times D) Remains the same

In a network, if the number of holes is n and number of elements is e, then the number of independent mesh equations required to solve the network is (a) e – n + 1 (b) e + n + 1 (c) e + n – 1 (d) e – n – 1

A network which contains one or more than one source of e.m.f. is known as?

The number of independent loops for a network with n nodes and b branches is

"In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual fictitious currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken in order ... sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources". The above statement is associated with?

If a variable can take only integer values from 0 to n, where n is a constant integer, then variable can be represented as a bit-field whose width is the integral part of (assume base 2)  (1) log(n) +1 (2) log(n + 1) + 1 (3) log(n – 1) + 1 (4) none of these

The gate whose output is LOW, if and only if all the inputs are HIGH, is

A network is said to be under resonance when the voltage and the current at the network input terminals are (A) in phase (B) out of phase (C) in phase quadrature (D) in phase, and have equal magnitudes

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

Which of the following are known as the short circuit parameters of a 2- port network? (A) Z- parameters. (B) H- parameters. (C) Y- parameters. (D) A,B,C,D, parameters.

If all transmission zeros of a network are at origin, it is a  A) HPF B) LPF C) BPF D) BEF

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  (a) N+L–1 (b) B–1 (c) B–N (d) N–1

When the graph of a network has six branches with three tree branches then the minimum number of equations required for the solution of the network is   (A) 2 (B) 3 (C) 4 (D) 5

A series R-L-C Circuit has a resonant frequency of 1000 Hz. If the values of R, L and C are doubled, the new resonant frequency is

A passive network is one which contains?

The circuit has resistors, capacitors and semi-conductor diodes. The circuit will be known as

A network has 10 nodes and 17 branches. The number of independent mesh equations required to solve the network is   (a) 7 (b) 8 (c) 10 (d) 45

In a graph, the number of independent loops is 6 and the number of independent cut sets is 5, The total number of branches in the graph is A) 9 B) 12 C) 10 D) 11

"Any number of current sources in parallel may be replaced by a single current source whose current is the algebraic sum of individual source currents and source resistance is the parallel combination of individual source resistances". The above statement is associated with?

If the base current of a BJT is 250 µA and emitter current is 15 mA, then the common base current gain will be A) 0.98 B) 0.41 C) 59 D) 55

To find current in a resistance connected in a network, Thevenin's theorem is used VTH = 20 V and RTH = 5 Ω. The current through the resistance: (1) is 4 A (2) is 4 A or less (3) is less than 4 A (4) May be 4 A or less or more than 4 A

A closed path made by several branches of the network is known as?

Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then .  A) The bulbs together consume 100 W B) The bulbs together consume 50 W C) The 60 W bulb glows brighter D) The 40 W bulb glows brighter

When an antenna of input resistance 73 ohm is connected to a 50-ohm line and if the losses are ignored then its efficiency will be nearly   (A) 0.19 (B) 0.81 (C) 0.97 (D) 1.19

The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be:  (A) 0.3 (B) 0.6 (C) 0.003 (D) 0.006

If a 5-bus test system contains 6 transmission lines and one transformer, how many non-zero elements are there in the system Y-bus ? (A) 25 (B) 12 (C) 11 (D) 19

When a body reflects all the radiations incident on it, then the body is known as   (a) White body (b) Grey body (c) Black body (d) Transparent body

Four identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be

Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be?

Which of the following is true with a series circuit having resistors of different values? A) The total resistance of the circuit is the sum of the individual resistances B) The current across each resistor is the same C) The voltage drop across each resistor depends on the value of the resistor D) All the above

The system unit of a personal computer typically contains all of the following except?  a) Microprocessor b) Disk Controller c) Serial interface d) Modem

A data dictionary is a special file that contains  (1) The name of all fields in all files (2) Data types of all fields in all files (3) The width of all fields in all files (4) All of these

The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be A) 3 B) 2 C) 4 D) 5

Which among the following is the equation for the number of independent loops for a network with n nodes and b branches?  (A) n-1 (B) b+n-1 (C) b-n+1 (D) b-n

If both the number of turns and core length of an inductive coil are doubled, then its self inductance will be (a) halved (b) doubled (c) quadrupled (d) unaffected

If the contents of an accumulator are Ex-ORed with itself and placed in the accumulator itself, then  A) Carry flag will be set B) The accumulator contains all 1’s C) The zero flag is set D) The accumulator contents are shifted left by one bit

The internal resistances of an ideal current source, and an ideal voltage source are, respectively, (A) 0, ∞ (B) ∞, ∞ (C) ∞, 0 (D) 0,0

When three resistors with unequal values are connected in parallel, _______ A) The current across the resistors is the same  B) The voltage drop across the resistors is the same C) The voltage drops across the resistors is proportional to the resistance of each resistor D) None of these

If a voltage-controlled bus is treated as load bus, then which one of the following limits would be violated?   (a) Active power (b) Reactive power (c) Voltage (d) Phase angle

To neglect a current source, the terminal across the sources are:  (1) Open circuited (2) Short-circuited (3) Replaced by some resistance (4) Replaced by capacitance

If the load current and flux of a DC motor are held constant, and voltage applied across its armature is increased by 10%, its speed will:  (A) Decrease by 10%. (B) Remain unchanged. (C) Increase by 10%. (D) Increase by 20%.