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.Management Sciences
Category: Network Theorems
Thevenin resistance Rth is found
A. by removing voltage sources along with their internal resistances
B. by short-circuiting the given two terminals
C. between any two ‘open’ terminals
D. between same open terminals as for Etk
To determine the polarity of the voltage drop across a resistor, it is necessary to know___________?
A. value of current through the resistor
B. direction of current through the resistor
C. value of resistor
D. e.m.fs. in the circuit
Between the branch voltages of a loop the Kirchhoff s voltage law imposes_____________?
A. non-linear constraints
B. linear constraints
C. no constraints
D. none of the above
A closed path made by several branches of the network is known as____________?
A. branch
B. loop
C. circuit
D. junction
Millman’s theorem yields____________?
A. equivalent resistance
B. equivalent impedance
C. equivalent voltage source
D. equivalent voltage or current source
If the energy is supplied from a source, whose resistance is 1 ohm, to a load of 100 ohms the source will be___________?
A. a voltage source
B. a current source
C. both of above
D. none of the above
A passive network is one which contains____________?
A. only variable resistances
B. only some sources of e.m.f. in it
C. only two sources of e.m.f. in it
D. no source of e.m.f. in it
The circuit whose properties are same in either direction is known as__________?
A. unilateral circuit
B. bilateral circuit
C. irreversible circuit
D. reversible circuit
A terminal where three on more branches meet is known as______________?
A. node
B. terminus
C. combination
D. anode
An ideal voltage source should have______________?
A. large value of e.m.f.
B. small value of e.m.f.
C. zero source resistance
D. infinite source resistance
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