8 - Definitions

Question 1

Electric current is defined as

Answer 1

Rate of flow of charge.

Question 2

1Ampere is equal to

Answer 2

1 C of charge passing through per second

Question 3

Charge of an electron/

elementary charge

Answer 3

-1.6x10^-19

Question 4

Positive net charge

Answer 4

Object has lost electrons

Q=+(no.) electrons.

Question 5

Conventional current

Answer 5

Flow from positive to negative

Question 6

In metals charge carriers are

Answer 6

Electrons

Question 7

In liquids charge carriers tend to be

Answer 7

Ions

Question 8

Liquids that carry current are called

Answer 8

Electrolytes

Question 9

Ammeter is used to

Answer 9

Measure electric current.

Question 10

Kirchhoff’s First law

Answer 10

Sum of current in is sum of current out.

Question 11

Number of free electrons per unit volume

Answer 11

Number density

Question 12

Conductor have a _____ number density

Answer 12

High

Question 13

Drift velocity equation

Answer 13

I = Anev

Question 14

Larger cross sectional area =

Answer 14

Less drift velocity, as more electrons are able to get through their speed doesn’t need to be very high to match the current.