E5C: Impedance plots and coordinate systems: plotting impedances in polar coordinates; rectangular coordinate
E5C01:
In polar coordinates, what is the impedance of a network consisting of a 100-ohm-reactance inductor in series with a 100-ohm resistor?
141 ohms at an angle of 45 degrees
121 ohms at an angle of 35 degrees
161 ohms at an angle of 55 degrees
181 ohms at an angle of 65 degrees
E5C02:
In polar coordinates, what is the impedance of a network consisting of a 100-ohm-reactance inductor, a 100-ohm-reactance capacitor, and a 100-ohm resistor, all connected in series?
100 ohms at an angle of 0 degrees
100 ohms at an angle of 90 degrees
10 ohms at an angle of 0 degrees
10 ohms at an angle of 90 degrees
E5C03:
In polar coordinates, what is the impedance of a network consisting of a 300-ohm-reactance capacitor, a 600-ohm-reactance inductor, and a 400-ohm resistor, all connected in series?
500 ohms at an angle of 37 degrees
900 ohms at an angle of 53 degrees
400 ohms at an angle of 0 degrees
1300 ohms at an angle of 180 degrees
E5C04:
In polar coordinates, what is the impedance of a network consisting of a 400-ohm-reactance capacitor in series with a 300-ohm resistor?
500 ohms at an angle of -53.1 degrees
240 ohms at an angle of 36.9 degrees
240 ohms at an angle of -36.9 degrees
500 ohms at an angle of 53.1 degrees
E5C05:
In polar coordinates, what is the impedance of a network consisting of a 400-ohm-reactance inductor in parallel with a 300-ohm resistor?
240 ohms at an angle of 36.9 degrees
240 ohms at an angle of -36.9 degrees
500 ohms at an angle of 53.1 degrees
500 ohms at an angle of -53.1 degrees
E5C06:
In polar coordinates, what is the impedance of a network consisting of a 100-ohm-reactance capacitor in series with a 100-ohm resistor?
141 ohms at an angle of -45 degrees
121 ohms at an angle of -25 degrees
191 ohms at an angle of -85 degrees
161 ohms at an angle of -65 degrees
E5C07:
In polar coordinates, what is the impedance of a network comprised of a 100-ohm-reactance capacitor in parallel with a 100-ohm resistor?
71 ohms at an angle of -45 degrees
31 ohms at an angle of -15 degrees
51 ohms at an angle of -25 degrees
91 ohms at an angle of -65 degrees
E5C08:
In polar coordinates, what is the impedance of a network comprised of a 300-ohm-reactance inductor in series with a 400-ohm resistor?
500 ohms at an angle of 37 degrees
400 ohms at an angle of 27 degrees
500 ohms at an angle of 47 degrees
700 ohms at an angle of 57 degrees
E5C09:
When using rectangular coordinates to graph the impedance of a circuit, what does the horizontal axis represent?
The voltage or current associated with the resistive component
The voltage or current associated with the reactive component
The sum of the reactive and resistive components
The difference between the resistive and reactive components
E5C10:
When using rectangular coordinates to graph the impedance of a circuit, what does the vertical axis represent?
The voltage or current associated with the reactive component
The voltage or current associated with the resistive component
The sum of the reactive and resistive components
The difference between the resistive and reactive components
E5C11:
What do the two numbers represent that are used to define a point on a graph using rectangular coordinates?
The coordinate values along the horizontal and vertical axes
The magnitude and phase of the point
The sine and cosine values
The tangent and cotangent values
E5C12:
If you plot the impedance of a circuit using the rectangular coordinate system and find the impedance point falls on the right side of the graph on the horizontal line, what do you know about the circuit?
It is equivalent to a pure resistance
It has to be a direct current circuit
It contains resistance and capacitive reactance
It contains resistance and inductive reactance
E5C13:
What coordinate system is often used to display the resistive, inductive, and/or capacitive reactance components of an impedance?
Rectangular coordinates
Maidenhead grid
Faraday grid
Elliptical coordinates
E5C14:
What coordinate system is often used to display the phase angle of a circuit containing resistance, inductive and/or capacitive reactance?
Polar coordinates
Maidenhead grid
Faraday grid
Elliptical coordinates
E5C15:
In polar coordinates, what is the impedance of a circuit of 100 -j100 ohms impedance?
141 ohms at an angle of -45 degrees
100 ohms at an angle of 45 degrees
100 ohms at an angle of -45 degrees
141 ohms at an angle of 45 degrees
E5C16:
In polar coordinates, what is the impedance of a circuit that has an admittance of 7.09 millisiemens at 45 degrees?
141 ohms at an angle of -45 degrees
5.03 x 10 -E05 ohms at an angle of 45 degrees
19,900 ohms at an angle of -45 degrees
141 ohms at an angle of 45 degrees
E5C17:
In rectangular coordinates, what is the impedance of a circuit that has an admittance of 5 millisiemens at -30 degrees?
173 + j100 ohms
173 - j100 ohms
200 + j100 ohms
200 - j100 ohms
E5C18:
In polar coordinates, what is the impedance of a series circuit consisting of a resistance of 4 ohms, an inductive reactance of 4 ohms, and a capacitive reactance of 1 ohm?
5 ohms at an angle of 37 degrees
6.4 ohms at an angle of 53 degrees
5 ohms at an angle of 45 degrees
10 ohms at an angle of -51 degrees
E5C19:
Which point on Figure E5-2 best represents that impedance of a series circuit consisting of a 400 ohm resistor and a 38 picofarad capacitor at 14 MHz?
Point 4
Point 2
Point 5
Point 6
E5C20:
Which point in Figure E5-2 best represents the impedance of a series circuit consisting of a 300 ohm resistor and an 18 microhenry inductor at 3.505 MHz?
Point 3
Point 1
Point 7
Point 8
E5C21:
Which point on Figure E5-2 best represents the impedance of a series circuit consisting of a 300 ohm resistor and a 19 picofarad capacitor at 21.200 MHz?
Point 1
Point 3
Point 7
Point 8
E5C22:
In rectangular coordinates, what is the impedance of a network comprised of a 10-microhenry inductor in series with a 40-ohm resistor at 500 MHz?
40 + j31,400
40 - j31,400
31,400 + j40
31,400 - j40
E5C23:
Which point on Figure E5-2 best represents the impedance of a series circuit consisting of a 300-ohm resistor, a 0.64-microhenry inductor and an 85-picofarad capacitor at 24.900 MHz?
Point 8
Point 1
Point 3
Point 5
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