A - Electrical Theory Flashcards

1
Q

An element consists of:

A

One kind of atom.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Electrons have a:

A

Negative charge.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The nuclear of an atom has:

A

Protons and neutrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A conductor of electricity is a material that:

A

Allows the electrons to move through it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Atoms consist of three still smaller particles called:

A

Electron. Proton. Neutron.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Of these particles, the positively charged particle is the (?) and the negatively charged particle is the (?). The particles found in the nucleus of the atom are the (?) and the (?).

A

Of these particles, the positively charged particle is the proton and the negatively charged particle is the electron. The particles found in the nucleus of the atom are the neutron and the proton.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

An atom that has gained a surplus of electrons is said to be a (?) ion and if the atom has lost a number of electrons, it is called a (?) ion.

A

An atom that has gained a surplus of electrons is said to be a negatively charged ion and if the atom has lost a number of electrons, it is called a positively charged ion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The electrons found in the outermost orbit of the atom are known as:

A

Valance electrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Most insulators are:

A

Compounds of two or more elements.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Voltage is electrical:

A

Force.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The opposition to electron flow is:

A

Resistance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Resistance of a conductor is determined by:

A

Length, cross-sectional area, temperature and type of material.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Current is electrical:

A

Flow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which of the following forms of voltage sources require polarity markings?

A

Direct voltage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Technicians should wear static straps when working on any electronic components to prevent discharges of damaging voltages that are produced by:

A

Friction.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly