Avionics Questions|VERIFIED SOLUTIONS (100%
CORRECT)!
capacitors store energy in the form of an _________ ______ - ✔✔electric field
a capacitor is used to ________ or ________ ______ voltage signals - ✔✔filter or smooth out
capacitors can add ________ to an electric signal - ✔✔delay
capacitors can act like a ________ since they store energy for a ________ period of time -
✔✔battery , short
electrolytic capacitors are __________, meaning they have a positive and a negative end -
✔✔polarized
the positive end of an electrolytic capacitor (longer) must be connected to the __________
_________ side of a circuit - ✔✔higher voltage_____
because electrolytic capacitors are _________, they cannot be used in _______ circuits -
✔✔polarized, AC
ceramic disk capacitors are ______________ - ✔✔not polarized
capacitors start accumulating charge when there is a change in ___________ between two
ends - ✔✔voltage aka potential
equation for accumulated charge (q) - ✔✔q=CV
, q = ∫ I dt
units of capacitance - ✔✔Farad = Coulomb/Volt
if the voltage is not changing, the current through a capacitor is - ✔✔zero
voltage across a capacitor - ✔✔(1/C) ∫ I dt
time constant (tau) = time to reach _________ of final value - ✔✔63.2%
after 2*tau, voltage will be about __________ of final value - ✔✔86.5%
equation for voltage across a capacitor in an RC circuit - ✔✔Vc = Vs(1-e^(-t/RC))
equation for time constant in an RC circuit - ✔✔τ = RC
consider the general equation
Vc = Vs(1-e^(-at))
what is the equation for time constant - ✔✔τ = 1/a
transient circuit - ✔✔voltage changes over time before settling (dynamic response)
when time=0 (first turn on circuit), a capacitor acts like a - ✔✔wire
allows all current through
CORRECT)!
capacitors store energy in the form of an _________ ______ - ✔✔electric field
a capacitor is used to ________ or ________ ______ voltage signals - ✔✔filter or smooth out
capacitors can add ________ to an electric signal - ✔✔delay
capacitors can act like a ________ since they store energy for a ________ period of time -
✔✔battery , short
electrolytic capacitors are __________, meaning they have a positive and a negative end -
✔✔polarized
the positive end of an electrolytic capacitor (longer) must be connected to the __________
_________ side of a circuit - ✔✔higher voltage_____
because electrolytic capacitors are _________, they cannot be used in _______ circuits -
✔✔polarized, AC
ceramic disk capacitors are ______________ - ✔✔not polarized
capacitors start accumulating charge when there is a change in ___________ between two
ends - ✔✔voltage aka potential
equation for accumulated charge (q) - ✔✔q=CV
, q = ∫ I dt
units of capacitance - ✔✔Farad = Coulomb/Volt
if the voltage is not changing, the current through a capacitor is - ✔✔zero
voltage across a capacitor - ✔✔(1/C) ∫ I dt
time constant (tau) = time to reach _________ of final value - ✔✔63.2%
after 2*tau, voltage will be about __________ of final value - ✔✔86.5%
equation for voltage across a capacitor in an RC circuit - ✔✔Vc = Vs(1-e^(-t/RC))
equation for time constant in an RC circuit - ✔✔τ = RC
consider the general equation
Vc = Vs(1-e^(-at))
what is the equation for time constant - ✔✔τ = 1/a
transient circuit - ✔✔voltage changes over time before settling (dynamic response)
when time=0 (first turn on circuit), a capacitor acts like a - ✔✔wire
allows all current through
