103B Current, Voltage & Resistance Flashcards

1
Q

Electrons are _____ charged
Protons are _____ charged

A
  1. Negatively
  2. Positively
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2
Q

If an atom gains free electrons it becomes a _____
If an atom loses free electrons it becomes a _____

A
  1. Negative
  2. Positive
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3
Q

Flow of electrons is called

A

Electrical current

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4
Q

When the charges are equalized, the battery is

A

Dead and the electrical current stops flowing

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5
Q

_____ is the buildup of electrical charge in an isolated object

A

Static electricity

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6
Q

6.28 x 10(18) =

A

1 Coulomb

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7
Q

Electric charge symbol

A

Q

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8
Q

Q =

A

10C

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9
Q

I =

A

10A

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10
Q

A current of 1A is 1 coulomb of charge passing a point every second

T or F

A

True

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11
Q

Electron flow

A

Answer.
- -> +

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12
Q

Conventional flow

A

+ -> -

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13
Q

_____ is the measurement of difference in charge

A

Voltage

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14
Q
  1. Source voltage
  2. Voltage drop
A
  1. E
  2. V
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15
Q

A practical electrical circuit consists of 4 components

A
  1. Source of emf
  2. Conductors
  3. Switch
  4. Load
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16
Q

Copper is the most common _____

A

Conductor

17
Q

Capable of opening a circuit

A

Switches

18
Q

Consume electricity while performing an action

A

Loads

19
Q

Low resistance -> _____
High resistance -> _____

A
  1. Conductor
  2. Insulator
20
Q

One volt is the value of the difference in charge that will cause a current of one ampere to flow in a circuit with a resistance of one ohm

T or F

A

True

21
Q

Ohm’s Law in the form of an equation

A

I = E/R

22
Q

What is electromotive force (emf)?

A

An imbalance of electron distribution or a difference in charge between 2 points

23
Q

What are the basic components of an electrical circuit?

A
  1. An emf source
  2. conductors
  3. switch
  4. load