Question

A wire connected in the left gap of a meter bridge balance a$10 \Omega$ resistance in the right gap to a point, which divides the bridge wire in the ratio 3 : 2. If the length of the wire is 1 m. The length of one ohm wire is

• A. 0.057 m
• B. 0.067 m
• C. 0.37 m
• D. 0.134 m

Answer 1

Answer: (B)

0.067 m

Answer 2

: Here,

$\therefore \mathrm { R } = \frac { 3 } { 2 } \times \mathrm { S } = \frac { 3 } { 2 } \times 10 = 15 \Omega$

As the length of wire is 1 m.

$\therefore$length of one ohm wire = 1/15=0.067 m