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Circuit Analysis Techniques
Welcome to your Circuit Analysis Techniques
The most common source you will see will be a
This is a capacitor, with capacitance C measured in units of F.
Wires connecting parts of a circuit are really not
The EMF of a battery is the ...... possible voltage that the battery can provide between its terminals.
The positive terminal of the battery is at a ____ potential than the negative terminal.
Internal resistance is due to the flow of charges within the battery, ____ is developed.
The terminal voltage also_____ the voltage across the external resistance.
When the direction of the current is opposite that of the EMF then the ____.may exceed the EMF by an amount Ir.
The potential difference applied across the ...... combination of resistors will divide between the resistors.
The potential energy ........whenever the charge passes through a battery from the negative terminal to the positive terminal
A phasor is a vector whose length is proportional to the ..... value of the variable it represents
The projection of the phasor onto the ___ axis represents the instantaneous value of the quantity it represents.
The phase relation is often depicted graphically in a ...... diagram.
The length of the phasor is .....proportional to the magnitude of the quantity represented
The usual reference for ...... phase is taken to be the positive x-axis and is associated with the resistor
When capacitors or inductors are involved in an AC circuit, the ..... do not peak at the same time.
Voltage and current
The fraction of a period difference between the peaks expressed in ..... is said to be the phase difference.
The phase difference is <= ..... degrees. It is customary to use the angle by which the voltage leads the current.
AC ammeters and voltmeters are designed to read ____ values.
The current at all points in a series AC circuit has the ...... amplitude and phase.
The voltage across the resistor is ____ phase with the current
The voltage across the inductor ....... the current by 90Â°
The voltage across the capacitor ___behind the current by 90Â°.
When XL>XC, the phase angle is ...... signifying that the current leads the applied voltage
When XL =XC, the phase angle is ..... and the circuit is purely resistive
..........power losses are associated with pure capacitors and pure inductors in an AC circuit.
The average power supplied by the source is .......
When the resonance frequency of the circuit matches that of the incoming electromagnetic wave, the current in the receiving circuit ......
The frequency Ï‰0 at which XL â€“ XC=____ is called the resonance frequency of the circuit.
The Norton equivalent current is
the open-current from the source
the current through the load
the short circuit current
none of these
The Thevenin equivalent voltage is
the same as the load voltage
the open circuit voltage
equal to the source voltage
none of these
In order to get maximum power transfer from a capacitive source, the load must
have an impedance that is the complex conjugate of the source impedance
have a capacitive reactance equal to circuit resistance
be as capacitive as it is inductive
none of these
If two currents are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant
is the sum of the two currents
is the difference between the two currents
cannot be determined
The two basic components of a Thevenin equivalent ac circuit are
the equivalent voltage source and the equivalent parallel resistance
the equivalent voltage source and the equivalent series resistance
the equivalent voltage source and the equivalent parallel impedance
the equivalent voltage source and the equivalent series impedance
In applying the superposition theorem
the sources are considered one at a time with all others replaced by their internal impedance
all sources are considered simultaneously
all sources are considered independently
the sources are considered one at a time with all others replaced by their internal resistance
Nortonâ€™s theorem gives
an equivalent voltage source in parallel with an equivalent impedance
an equivalent current source in series with an equivalent impedance
an equivalent current source in parallel with an equivalent impedance
an equivalent voltage source in series with an equivalent impedance
Kirchhoff's Current LawÂ (KCL) is the algebraic sum of the currents entering any node is .......
We designate the remaining .......nodes as voltage nodes and give each node a unique name, vi.
Every circuit has ...... nodes with one of the nodes being designated as a reference node.
The electrical energy required to raise the temperature of a give amount of water is 200kwh. If the heat losses are 20%. Total energy required is:
None of the above
An ideal voltage source should have:
Zero source resistance
Infinite source resistance
Terminal voltage is proportional to current
Open-circuit voltage nearly equal to voltage of the load current
Maxwell's circulating current theorem:
Utilizes Kirchhoff's voltage law
Utilizes Kirchhoff's current law
Is a network reduction method
Is confined to single loop circuits
Which of the following is correct:
Norton's equivalent resistance is the same as Thevenin's equivalent resistance
Norton's equivalent is the current equivalent of the network
The load is connected in parallel to the Norton's equivalent resistance and Norton's equivalent current source
All the above
The superposition theorem requires as many circuits to be solved as there are:
Nodes and Sources
Nodes, Sources and Mesh
For maximum transfer of power, internal resistance of the source should be:
Equal to load resistance
Less than that of the load
More than that of the load
Your new question!
An ideal current source has:
Zero internal conductance
Zero internal resistance
Zero voltage on no load
Kirchhoff's laws are applicable to circuits with:
If there are 'b' branches and 'n' nodes the number of equations will be:
A terminal where more than two branches met is called: