Charges in Motion and Ohms Law

Question 1

when to assume pinpoint charges and static

Answer 1

species in a solid state or assumed to be in static positions in a vacuum

Question 2

what two factors are considered to give a more accurate description of charges

Answer 2

charged particles in motion

charged particles with mass

Question 3

if it has mass and motion what law can be applied

Answer 3

newtons second law of motion F = ma

Question 4

what equation if the electric force is the only one present (eg y axis mass spec)

Answer 4

a = qE/m

Question 5

the first ohms law

Answer 5

given a circuit of fixed voltage V, the amount of current I through a circuit is inversely proportional to the resistance R of a circuit

Question 6

Ohms law equation

Answer 6

I = V/R

Question 7

does pure or saltwater have higher resistance

Answer 7

pure water

Question 8

what is the unit of charge

Answer 8

coloumb C

Question 9

define coloumb

Answer 9

charge transported by a constant current of 1 Ampere in 1 second

Question 10

unit of current

Answer 10

ampere A

Question 11

define current

Answer 11

the amount of electric charge passing a point in a second

Question 12

unit of electric potential

Answer 12

volt V

Question 13

define electric pontential

Answer 13

amount of electrical potential energy that a unitary point charge would have when located at that point

Question 14

unit of resistance

Answer 14

ohm (circle on a table)

Question 15

define resistance

Answer 15

the opposition of a material to current passing through it