Avionics Quiz 2 UPDATED Exam Questions
and CORRECT Answers
steps of node voltage method - CORRECT ANSWER - 1. identify all nodes
2. set one node as ground reference node (choose node with most connections)
3. make currents come out of all nodes
4. apply KCL for all nodes except ground node (I1+I2+I3=0)
5. use ohm's law (I=V/R) to "travel" from each node to ground
Node voltage of a node that has a voltage source in one branch will be equal to - CORRECT
ANSWER - Vs
capacitors have two __________ plates - CORRECT ANSWER - conducting
capacitors consist of a pair of parallel conducting plates separated by a _________________
_____________ - CORRECT ANSWER - dielectric material (e.g. air, ceramic)
the dielectric material between capacitor plates acts as an _________________ - CORRECT
ANSWER - insulator
capacitors store energy in the form of an _________ ______ - CORRECT ANSWER -
electric field
a capacitor is used to ________ or ________ ______ voltage signals - CORRECT
ANSWER - filter or smooth out
capacitors can add ________ to an electric signal - CORRECT ANSWER - delay
, capacitors can act like a ________ since they store energy for a ________ period of time -
CORRECT ANSWER - battery , short
electrolytic capacitors are __________, meaning they have a positive and a negative end -
CORRECT ANSWER - polarized
the positive end of an electrolytic capacitor (longer) must be connected to the __________
_________ side of a circuit - CORRECT ANSWER - higher voltage_____
because electrolytic capacitors are _________, they cannot be used in _______ circuits -
CORRECT ANSWER - polarized, AC
ceramic disk capacitors are ______________ - CORRECT ANSWER - not polarized
capacitors start accumulating charge when there is a change in ___________ between two ends -
CORRECT ANSWER - voltage aka potential
equation for accumulated charge (q) - CORRECT ANSWER - q=CV
q = ∫ I dt
units of capacitance - CORRECT ANSWER - Farad = Coulomb/Volt
if the voltage is not changing, the current through a capacitor is - CORRECT ANSWER - zero
voltage across a capacitor - CORRECT ANSWER - (1/C) ∫ I dt
time constant (tau) = time to reach _________ of final value - CORRECT ANSWER - 63.2%
after 2*tau, voltage will be about __________ of final value - CORRECT ANSWER - 86.5%
and CORRECT Answers
steps of node voltage method - CORRECT ANSWER - 1. identify all nodes
2. set one node as ground reference node (choose node with most connections)
3. make currents come out of all nodes
4. apply KCL for all nodes except ground node (I1+I2+I3=0)
5. use ohm's law (I=V/R) to "travel" from each node to ground
Node voltage of a node that has a voltage source in one branch will be equal to - CORRECT
ANSWER - Vs
capacitors have two __________ plates - CORRECT ANSWER - conducting
capacitors consist of a pair of parallel conducting plates separated by a _________________
_____________ - CORRECT ANSWER - dielectric material (e.g. air, ceramic)
the dielectric material between capacitor plates acts as an _________________ - CORRECT
ANSWER - insulator
capacitors store energy in the form of an _________ ______ - CORRECT ANSWER -
electric field
a capacitor is used to ________ or ________ ______ voltage signals - CORRECT
ANSWER - filter or smooth out
capacitors can add ________ to an electric signal - CORRECT ANSWER - delay
, capacitors can act like a ________ since they store energy for a ________ period of time -
CORRECT ANSWER - battery , short
electrolytic capacitors are __________, meaning they have a positive and a negative end -
CORRECT ANSWER - polarized
the positive end of an electrolytic capacitor (longer) must be connected to the __________
_________ side of a circuit - CORRECT ANSWER - higher voltage_____
because electrolytic capacitors are _________, they cannot be used in _______ circuits -
CORRECT ANSWER - polarized, AC
ceramic disk capacitors are ______________ - CORRECT ANSWER - not polarized
capacitors start accumulating charge when there is a change in ___________ between two ends -
CORRECT ANSWER - voltage aka potential
equation for accumulated charge (q) - CORRECT ANSWER - q=CV
q = ∫ I dt
units of capacitance - CORRECT ANSWER - Farad = Coulomb/Volt
if the voltage is not changing, the current through a capacitor is - CORRECT ANSWER - zero
voltage across a capacitor - CORRECT ANSWER - (1/C) ∫ I dt
time constant (tau) = time to reach _________ of final value - CORRECT ANSWER - 63.2%
after 2*tau, voltage will be about __________ of final value - CORRECT ANSWER - 86.5%
