The resistance (R) in a wire increases when the length of the wire (L) increases. Write the correct equation for this scenario, and solve for when the length is 1.

Length Resistance
10 2
15 3

answer choices:

R = 20 / L; R = 20

R = .2L; R = 5

R = .2L; R = .2

R = 20 / L; R = 5

Question

The resistance (R) in a wire increases when the length of the wire (L) increases. Write the correct equation for this scenario, and solve for when the length is 1.

Length    Resistance
10                2
15                3

answer choices:

 R = 20 / L; R = 20

R = .2L; R = 5

R = .2L; R = .2

R = 20 / L; R = 5

dan815 · Answer

so it is infact a linear relationship,
so R=1/5 L 
or R=0.2 L
Lets see what R is for L =1

dan815 · Answer

ooops i didnt mean to delete that i hope you read that

anonymous · Answer

its ok i read it

dan815 · Answer

ok so what should R be in that equation when L = 1

anonymous · Answer

so do you just multiply by 1

anonymous · Answer

im pretty sure its B

anonymous · Answer

come on @dan815  dont give up on me

anonymous · Answer

b