For a potentiometer, the potential gradient is given as 0.1 V/cm . The same potential gradient in V/m will be _____
A. 1 V/m
B. 10 V/m
C. 100 V/m
D. 0.01 V/m
Answers
Answered by
0
Answer:
option D
Explanation:
Correct option is
D
10
8
V/m
Potential gradient is
k=
l
V
=
l
iR
(∴V=iR)
or k=
l
i×ρ
A
l
(∵R=ρ
A
l
)
⟹ k=
A
iρ
where i=0.01×10
−3
A, ρ=10
9
×10
−2
m and A=10
−2
×10
−4
m
2
∴k=
10
−2
×10
−4
0.01×10
−3
×10
9
×10
−2
=10
8
V/m
Answered by
0
Answer:
DdggExplanation:
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