Electrical Current and Charge Vocabulary

Vocabulary and formulas relating to electric current, charge, and time as described in the lecture notes.

$$I$$

Representation of electrical current, measured in amperes.

$$Q$$

Quantity of electrical charge, measured in coulombs.

$$t$$

Time, measured in seconds.

Amperes

The unit used to measure electrical current ($I$).

Coulombs

The unit used to measure the quantity of electrical charge ($Q$).

$$I = \frac{Q}{t}$$

The formula defining current as the quantity of electrical charge divided by time.

Scientific Notion

Its a means of using single digit numbers plus powers of ten to express large and small numbers.

T

Tera

G

Giga

M

Mega

K

Kilo

m

Milli

M

Micro

n

Nano

p

Pico

Base line

The line that separates the positive and negatives

Two laws of electrostatic charges

Alike charges repel and unlike charges attract

Electrons break free from atoms why?

To produce current flow

I=Q/t =

6.24×10/18

Current flow in a circuit is from ?

Negative to positive

F=

Friction (x)

L=

Light ( solar cell)

M=

Magnetism (Ac generator)

C=

Chemical cell

H=

Heat (thermocouple) aka pencil

P=

Pressure ( piezoelectric)

The ability of a battery to deliver power continuously is expressed in?

Ampere-hours

In what configuration does the positive terminal of the first cell is connected to the negative terminal of the second cell and the positive terminal of the second cell is connected to the negative terminal of the third cell and so on…

Series aiding