Current

Question 1

What holds the electron in orbit around the Nucleus?

Answer 1

A force of attraction

Question 2

What is the outer orbit of the atom called?

Answer 2

The valance shell

Question 3

What is the electron in the outer orbit called?

Answer 3

The valance electron

Question 4

What is the polarity of an electron?

Answer 4

Negative

Question 5

If an electron is removed from an atom, by an external force, the electron is now known as a?

Answer 5

Free electron

Question 6

If an electron is removed, by an external force, the atom is now known as a?

Answer 6

Positive Ion

Question 7

The direction of electron flow is always?

Answer 7

Negative to Positive

Question 8

If current were to flow from +ve to -ve, it would be called?

Answer 8

Conventional current flow

Question 9

What is the circuit symbol for current?

Answer 9

I

Question 10

What is the unit of measurement of current?

Answer 10

Amps (A)

Question 11

Label the diagram.

Answer 11

Question 12

Label the diagram

Answer 12

Question 13

What is the simplest atom?

Answer 13

Hydrogen , it has one electron and 1 proton in orbit

Question 14

What is a balanced atom?

Answer 14

An atom that has an equal number of electrons & protons in orbit around the nucleus

Question 15

When an electron is forced out of orbit what happens to it’s atom?

Answer 15

It is positively charged

Question 16

What charge are all electrons?

Answer 16

Negative.

Question 17

Which way does electrons flow?

Answer 17

Negative to positive

Question 18

What is the amount of electrons passing a given point in 1 second?

Answer 18

6.241 x 1018power

Question 19

What are the effects of current flow?

Answer 19

• Cause heat
• Set up a magnetic field around a conductor