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Electric Circuits > Final > Flashcards

Final Flashcards

1
Q

Series

A

Resistors - RT + R/1 + R/2 + R/3….

Capacitors - 1/CT = 1/C1 + 1/C2 + 1/C3

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2
Q

Parallel

A

Resistors - 1/RT = 1/R1 + 1/R2 + 1/R3

Capacitors - CT = C1 +C2 + C3 …..

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3
Q

What moves electrons?

A

Voltage - Volts (E)
Electrical Pressure
EMF (Electromotive Force)
Potential Difference

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4
Q

Resistance (R)

A

Conductors (Free electrons; so they move easily.)

Insulators

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5
Q

AC

A

Alternating Current

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6
Q

DC

A

Direct Current

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7
Q

Meters

A

Volts
Ohms
Current

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8
Q

Types of Circuits

A
  1. Open (No path)
  2. Short - (No load)
  3. Complete
    A. Load
    B. Power Source
    C. Path (from and to)
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9
Q

Rules for OHMS before taking readings?

A
  1. Power off

2. Isolated

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10
Q

Circuit Laws

A 
E = I X R
P = I X E
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11
Q

Series Laws

A 
ET = E1 + E2...
IT = I1 = I2...
RT = R1 + R2...
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12
Q

Parallel Laws

A 
ET = E1 = E2...
IT = I1 + I2...
1/RT = 1/R1 + 1/R2...
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13
Q

Coils

A

Relay - Operate switches
Solenoids - Operate mechanical (valve)
Transformers - Energizes another coil

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14
Q

5 to 1 Ratio

A

50 Volts primary

10 Volts secondary

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15
Q

100 Turns

100 to 1

A

120 Volts = 12000 turns

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16
Q

Motors

A

Motion

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17
Q

Magnet strength depends on:

A
  1. Number of turns
  2. Current flow
  3. Type of material
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18
Q

Wiring

A

Switches - Series

Loads - Parallel

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19
Q

Never jumper?

A

!!!!!!!!LOADS!!!!!!!!

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20
Q

Jumping?

A

!!!!!!!!Switches Only!!!!!!!!

21
Q

Opposition

A

Slows down current flow.

22
Q

Impedence

A
  1. Resistors
  2. Inductance Reactance
  3. Capacitance Reactance
23
Q

Power Factor

A

True Power

24
Q

Apparent Power

A

Efficiency of motor

25
Q

(P = I X E) What is P stand for?

A

Power Factor

26
Q

True Power

A

Horse Power

27
Q

One horse power (H.P.) measured in watts?

A

746 watts

28
Q

T stat stands for?

A

Thermostat (Any volts)

29
Q

Thermostat wire colors?

A 
R = Power
W = Heat
Y = Cool
G = Fan (24 volts)
30
Q

Ohms Law

A

E
I | R

E = I X R (Voltage is Amperage times Resistance)

31
Q

E in Ohms law stands for?

A

Volts or Voltage

32
Q

I in Ohms law stands for?

A

Current measured in amps.

33
Q

R in Ohms law stands for?

A

Resistance or Ohms(Higher the resistance the less the flow will be.)

34
Q

P stands for?

A

Power measured in watts.

35
Q

Power Formula

A

P

I | E

36
Q

What is electric voltage measured in?

A

Volts

37
Q

How is a value of electrical voltage labeled?

A

V

38
Q

What symbol is used for electrical voltage in algebraic forumula?

A

E

39
Q

What is electrical power measured in?

A

Watts

40
Q

How is a value of electrical power labeled?

A

P

41
Q

What symbol is used for electrical power in algebraic formulas?

A

P

42
Q

What symbol is used for electrical current in algebraic formulas?

A

I

43
Q

What is electrical resistance measured in?

A

Ohms

44
Q

How is a value of electrical resistance labeled?

A

Ω

45
Q

What symbol is used for electrical resistance in algebraic formula?

A

R

46
Q

Which of the following terms is best defined as the opposition to flow of electrons in an electrical conductor?

A

Resistance

47
Q

Which of the following terms is best defined as the flow of electrons in an electrical conductor?

A

Current

48
Q

Which of the following terms is best defined as the rate electrical energy is converted into another form?

A

Power

49
Q

Women What
Are | Virgins Are | Volts

Virgins                                 Volts Are | Rare                           Are | Resistance
A

Watts
Amps | Volts

     Volts Amps | Resistance

Electric Circuits (1 decks)

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