age 1 of 16
MAE 488 EXAM 4 STUDY GUIDE 2025/2026
ACCURATE QUESTIONS AND VERIFIED CORRECT
SOLUTIONS WITH RATIONALES || 100%
GUARANTEED PASS <RECENT VERSION>
DC motors rely on what two concepts from physics?
......ANSWER........lorentz force
faradays law
armature ......ANSWER........a wire coil in an electric motor made
of many loops mounted on a shaft or axle
bb
lorentz force ......ANSWER........the force on a charge moving in a
magnetic field
,age 2 of 16
For armature DC motor, torque is what? ......ANSWER........T = K*I
K = torque constant
What controls torque and speed of armature DC motor
......ANSWER........current, which is done by voltage
Torque constant ......ANSWER........relationship between motor
torque and current
Size of matrix of transfer functions ......ANSWER........Output =
T(s)*Input[ ] = [ ] * [ ]
size of 3 input 2 output t(s) function ......ANSWER........2x3 matrix
Eigenvectors are unique ......ANSWER........false
eigenvalues are unique tho
, age 3 of 16
The eigenvalues of the A-matrix of a state space equation are
equal to what? ......ANSWER........The roots of the corresponding
characteristic equation
The definition of the states in a state space model are not unique
......ANSWER........trueConservative Force ......ANSWER........A
force, such as gravity, that performs work over a distance that is.
It is proportional to the angular velocity of the motor
What does Ohm's law state? ......ANSWER........The current
flowing through a resistor at a constant temperature is directly
proportional to the voltage across the resistor
work per unit charge to move current
V = iR
Passive Circuit Element ......ANSWER........dissipates power
MAE 488 EXAM 4 STUDY GUIDE 2025/2026
ACCURATE QUESTIONS AND VERIFIED CORRECT
SOLUTIONS WITH RATIONALES || 100%
GUARANTEED PASS <RECENT VERSION>
DC motors rely on what two concepts from physics?
......ANSWER........lorentz force
faradays law
armature ......ANSWER........a wire coil in an electric motor made
of many loops mounted on a shaft or axle
bb
lorentz force ......ANSWER........the force on a charge moving in a
magnetic field
,age 2 of 16
For armature DC motor, torque is what? ......ANSWER........T = K*I
K = torque constant
What controls torque and speed of armature DC motor
......ANSWER........current, which is done by voltage
Torque constant ......ANSWER........relationship between motor
torque and current
Size of matrix of transfer functions ......ANSWER........Output =
T(s)*Input[ ] = [ ] * [ ]
size of 3 input 2 output t(s) function ......ANSWER........2x3 matrix
Eigenvectors are unique ......ANSWER........false
eigenvalues are unique tho
, age 3 of 16
The eigenvalues of the A-matrix of a state space equation are
equal to what? ......ANSWER........The roots of the corresponding
characteristic equation
The definition of the states in a state space model are not unique
......ANSWER........trueConservative Force ......ANSWER........A
force, such as gravity, that performs work over a distance that is.
It is proportional to the angular velocity of the motor
What does Ohm's law state? ......ANSWER........The current
flowing through a resistor at a constant temperature is directly
proportional to the voltage across the resistor
work per unit charge to move current
V = iR
Passive Circuit Element ......ANSWER........dissipates power
