Question

Two coils made of same material are having resistance 5 Ω and 15 Ω respectively.

Which one will have more resistivity if the first wire has length 2 m and second

wire has length 3 m ? (Assume area of cross section of both wires to be 1 m^2

Two coils made of same material are having resistance 5 Ω and 15 Ω respectively.

Which one will have more resistivity if the first wire has length 2 m and second

wire has length 3 m ? (Assume area of cross section of both wires to be 1 m2

).).​

Answer 1

Answer:

As we know,

R=ρ×

A

l

Then

R

B

R

A

=

A

A

A

B