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Byju's Answer
Standard XII
Physics
Dependence on Magnetic Field
A Hall effect...
Question
A Hall effect transducer is used for the measurement of a magnetic field of
0.5
(
W
b
/
m
2
)
. The 2mm thick slab is made of bismuth for which the Hall's co-efficient is
−
1
×
10
−
6
(
V
m
/
(
A
W
b
m
−
2
)
)
the current is 3A, the output voltage (in mV) is _____
-0.75
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Solution
The correct option is
A
-0.75
E
H
=
K
H
I
B
/
t
=
−
1
×
10
−
6
×
3
×
0.5
×
1
2
×
10
−
3
=
−
10
−
6
×
0.75
×
10
3
=
−
75
×
10
−
5
=
−
0.75
m
V
∴
E
H
=
−
0.75
m
V
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