Question

Q. A potentiometer consists of a wire of length 4 m and resistance 10 2. It is connected to a cell of e.m.f.2V. The potential gradient of wire is​

Answer 1

Answer:

Hey mate hope u mark me as brainlist.

Explanation:

Correct option is

A

0.75 V/m

Current, I=E/R=3/10

Potential across the potentiometer wire is: V

p

=10I=3V

Potential gradient is: k=

l

V

p

=3/4=0.75 V/m

Answer 2

sice 1/1=1, the voltimiter goes spid, gag relex xylem and phloem