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Intro to Electricity > Module 3 Electrical Quantities and Ohm's Law > Flashcards

Module 3 Electrical Quantities and Ohm's Law Flashcards

1
Q

An open circuit has a complete path for electrical flow.
True or False

A

False

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2
Q

Which of these describes an Ohm (Ω)? Select all that apply.

A) A measure of proton flow.

B) Amount of resistance that allows 1 ampere of current to flow when 1 volt is applied.

C) Unit of resistance to current flow.

D) A measure of electrical pressure.

A

B) Amount of resistance that allows 1 ampere of current to flow when 1 volt is applied.

C) Unit of resistance to current flow.

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3
Q

Wattage is:
A) A measures of the amount of power that is being used in a circuit.
B) The potential difference to perform work.
C) The ability to perform work.
D) None of the these

A

A ) A measures of the amount of power that is being used in a circuit.

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4
Q

A Watt is a measure of resistance.
True or False

A

False

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5
Q

A closed circuit has a complete path for electrical flow.
True or False

A

True

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6
Q

What is an ampere? Select all that apply.

A) A measure of resistance

B) Equals one hundred electrons passing a given point in one second

C) Equals one coulomb of electrons passing a given point in one second

D) A measure of electricity flowing through a circuit

E) Equals one coulomb of electrons passing a given point in one minute

F) Equals one hundred electrons passing a given point in 100 seconds

G) A measure of current

H) A measure of work

A

C) Equals one coulomb of electrons passing a given point in one second

D) A measure of electricity flowing through a circuit

G) A measure of current

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7
Q

The amount of electrons that must go past a specific point in one second of time, to equal 1 Amp is:

a) 6.45 x 10^18

b) 6.35 x 10^18

c) 6.23 x 10^18

d) 6.15 x 10^18

e) 6.25 x 10 18

A

e) 6.25 x 10 18

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8
Q

An unintended shorter path for electricity to flow is called:
a) A short circuit
b) A closed circuit
c) A long circuit
d) An open circuit

A

a) A short circuit

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9
Q

Which of these are used to stand for electrical potential. Select all that apply.
a) Ω
b) R
c) E
d) V

A

c) E d) V

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10
Q

The conventional current theory says that current flow is from
a) Right to left

b) Positive to positive

c) Positive to negative

d) Left to right

e) Negative to positive

A

c) Positive to negative

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11
Q

Voltage is often thought of as the potential to do work.
True or False

A

True

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12
Q

Which of these are used to stand for Resistance. Select all that apply.
a) R
b) V
c) Ω
d) E

A

a) R c) Ω

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13
Q

According to Electron Flow Theory, current flows:

a) From negative to negative

b) From negative to positive

c) From positive to negative

d) From positive to positive

A

b) From negative to positive

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14
Q

Which of these statements is true about power?

a) Power in directly proportional to the amount of voltage but inversely proportional to the amount of current flow.

b) Power is inversely proportional to the amount of voltage and directly proportional to the amount of current flow.

c) Power is proportional to the amount of voltage and the amount of current flow.

d) Power is inversely proportional to the amount of voltage and the amount of current flow.

A

c) Power is proportional to the amount of voltage and the amount of current flow.

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15
Q

Power is measured in Watts.
True or False

A

True

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16
Q

Whenever current flow through a resistance, heat is produced.

True or False

A

True

17
Q

Electromotive force is defined as:
a) It is the force that pushes the protons through a wire and is often referred to as electrical pressure

b) It is the force that pushes the electrons through a wire and is often referred to as electrical pressure

c) None of these

d) It is the force that pushes the electrons through a wire and is often referred to as electrical farce

e) It is the force that pushes the neutrons through a wire and is often referred to as electrical pressure

A

b) It is the force that pushes the electrons through a wire and is often referred to as electrical pressure

18
Q

Which of these describe Alternating Current?

a) Downward

b) Bidirectional (two-way; back-and-forth)

c) Unidirectional (one-way)

d) Upward

A

b) Bidirectional (two-way; back-and-forth)

19
Q

An ohm is a unit of resistance.
True or False

A

True

20
Q

Ohms Law printed algebraically is:
a) P=E/I

b) E=IR

c) R=EI

d) P=EI

A

b) E=IR

21
Q

Which of these describe Direct Current?
a) Bidirectional (two-way; back-and-forth)

b) Unidirectional (one-way)

c) Upward

d) Downward

A

b) Unidirectional (one-way)

Intro to Electricity (4 decks)

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