C Flashcards

1
Q

V =

A

iR

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2
Q

KVL (Kirchoffs Voltage Law)

A

The voltage leaving and entering the element is equivalent to zero

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3
Q

KCL (Kirchoffs Current Law)

A

The current leaving and the entering the element is equivalent to zero

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4
Q

Resistors In Parallel =

A

Req = ((R1)(R2)(Rn))/ R1 + R2 + Rn

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5
Q

Resistors in Series

A

R1 + R2 + Rn = Req

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6
Q

Current through a parallel resistor =

A

In = I(total) * ((Rtotal) / Rn))

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7
Q

Current in series =

A

Remains constant throughout

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8
Q

Voltage in parallel =

A

Same through each element in parallel

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9
Q

Inductor Voltage -

A

CAN change instantly

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10
Q

Capacitor Voltage -

A

can NOT change instantly

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11
Q

Inductor Current

A

can NOT change instantly

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12
Q

Capacitor Current

A

CAN change instantly

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13
Q

Natural or “Transient Response” equation

A

v(t) = V0exp (-t / RC)

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14
Q

RC stands for -

A

Resistor- Capacitor

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15
Q

Time constant Tau (τ) =

A

RC

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16
Q

What is τ telling us?

A

The rate at which the voltage discharges

17
Q

Time constant

A

time required for the signal to reach 37%

18
Q

exp^1 =

A

.3678

19
Q

v(t) =

A

Vo exp (-t / τ)

20
Q

Power Dissipated in a Resistor

A

PR(t) = V(t) * IR(t) (Wat)

21
Q

PR(t) =

A

Vo exp( - t/ τ) * (Vo/R)exp(-t/τ)

22
Q

Power is measured in

A

Watts

23
Q

Pr(t) =

A

Vo^2/R exp(-2t/τ) (W)

24
Q

Energy =

A

Integral of power with respect to time

25
Q

Integral of Power with respect to time (energy) =

A

Vo^2/R exp (-2λ / τ) * -τ/2 from 0 to t (lambda is a dummy variable for t)

26
Q

1st Law of Thermodynamics

A

Energy can not be created nor destroyed

27
Q

During Steady State an Inductor acts like a

A

Short Circuit

28
Q

During Steady State a Capacitor acts like a

A

Open Circuit

29
Q

Voltage Division V1 =

A

(Vo * Resistor 1 ) / (R1)(R2)

30
Q

Current Divider Formula (In) =

A

I(total) (Rtotal/ Rn )

31
Q

i =

A

dq/dt

32
Q

Integral of current =

A

charge

33
Q

Voltage is equal to

A

the energy required to move one coulomb of change through an element

34
Q

Power is equal to

A

the change of work over time