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CGPET 2021 Solved Paper
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© examsnet.com
Question : 46
Total: 150
In above figure electron enters into magnetic field
B
. It deflects in the direction
+
ve
x
-direction
-ve
x
-direction
+ve
y
-direction
-ve
y
-direction
Validate
Solution:
The force on electron
(
e
−
)
must be acting in the
−
y
- direction initially (according to Fleming's left hand rule).
Since, B is along
−
z
- direction,
v is along
+
x
- direction.
∴ Force on electron is in
−
y
- direction.
© examsnet.com
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