Question

Answer 1

Ta có: \(\dfrac{R_1}{R_2}=\dfrac{l_1}{l_2}\)

\(\Leftrightarrow\dfrac{R_1}{R_2}=\dfrac{l_1}{l_2}=\dfrac{2}{6}=\dfrac{1}{3}\)

\(\Rightarrow\dfrac{R_1}{R_2}=\dfrac{1}{3}\)

Answer 2

ta có : \(\dfrac{R1}{R2}\) = \(\dfrac{l1}{l2}\)

<=> \(\dfrac{R1}{R2}\) = \(\dfrac{l1}{l2}\) = \(\dfrac{2}{6}\) = \(\dfrac{1}{3}\)

<=> \(\dfrac{R1}{R2}\) = \(\dfrac{1}{3}\)