Electric Charge

Question 1

Give the definition of electric charge.

Answer 1

One coulomb is the amount of charge passing a cross section of a conductor in one second, when the current is one ampere.

Question 2

How many electrons make up one coulomb?

Answer 2

6,25 x 10^18

Question 3

What is the charge of an electron?

Answer 3

-1,6 x 10^-19 coulombs.

Question 4

Give the formula to finding charge (Q)

Answer 4

Q= I x T

Question 5

What are the following symbols? AND what are the measured in? [6]
1] Q
2] I
3] t

Answer 5

1] charge - measured in COULOMBS (C)
2] current - measured in AMPERES (A)
3] time - SECONDS (s)

Question 6

An electron is [something] charged.

Answer 6

Negatively

Question 7

A proton is [something charged]

Answer 7

Positively

Question 8

If matter contains an excess of electrons, what overall charge will the matter have?

Answer 8

An overall negative charge

Question 9

If matter contains an equal number of protons and electrons what is the charge of this matter?

Answer 9

The matter is electrically neutral.