4A.1 Electric current

Question 1

what is a charge

Answer 1

a fundamental property of some particles, it a cause of an electromagnetic force, and it is a basic aspect of describing the electrical fields

Question 2

the electrical charge is measured in

Answer 2

coulomb

Question 3

what is a coulomb

Answer 3

is a unit of measurement for a charge. one coulomb is the quantity of charge that passes through a point
in the conducted per second when one ampere is following in the current

Question 4

what is the charge of one electron

Answer 4

-1.6 x 10^-19

Question 5

amount of electrons in one coulomb =

Answer 5

6.25 x 10^18

Question 6

what is the formula for charge

Answer 6

charge = number of electrons x charge of one electron

Question 7

what is an electrical current

Answer 7

the rate of flow of charge

Question 8

how does a current flow

Answer 8

when a potential difference is applied teh conducting electron accelerates around the circuit from the negative terminal to the positive terminal

Question 9

what is the SI unit for a current

Answer 9

ampere

Question 10

what is the formula for current

Answer 10

current = charge passing through one point/ the time taken for the charge to pass

Question 11

what is a reason for a current to be unusual

Answer 11

there might be charge carries other than electrons that can start a circuit

Question 12

what is the charge of on proton

Answer 12

1.6 x 10^-19