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問題一覧
1
The atomic number of an element is dependent upon the
number of electrons
2
Plasma is the state of matter where some
of the electrons in a gas are stripped or "ionized" from their molecules or atoms
3
The field about a charged body is generally represented by lines which are referred to as
electrostatic lines of force
4
Directed drift means
current
5
The process used to make some non-conducting liquids conduct electricity is
ionization
6
An electrolyte liquid is
a liquid which can carry an electric current through it
7
An electron is a particle which
orbit the nucleus of an atom
8
conductivity is the inverse of
resistance
9
This opposition to current flow is known as resistance (R), and the unit of measure is the
Ohm
10
The rate of flow of charge (Q)is
Amber
11
Electron arrangement of potassium which has 19 electrons is
2.8.8.1
12
Energy contained by an electron by virtue of its motion is
called kinetic energy
13
A vacuum is a medium
that allow electricity to flow unimpeded
14
The 1st shell (K) has a maximum of
2 electrons
15
Therefore Electric current Flow can be said to
flow from Negative to Positive
16
Elements whose atoms have fewer than 4 electrons in their valency shell are
good conductor
17
The fundamental negative charge is the
electron
18
Charged bodies attract or repel each other with a force that is directly proportional to the product of their individual charges, and is inversely proportional to the square of the distance between them
Coulomb's Law
19
The 4th shell (N) has a maximum of
32 electrons
20
The type of medium that is the best electrical conductor is
vacuum
21
The atom that gives up some of its electrons is
a positive ion
22
current can be calculated by the formula
I = Q / t
23
Mobile electrons means
free electron
24
The SI unit of electrical charge is
coulomb