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A uniform magnetic field B and a uniform...

A uniform magnetic field `B` and a uniform electric field `E` act in a common region. An electron is entering this region of space. The correct arrangement for it to escape undeviated is

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
For undeviated motion `|vecF_(e) | = |vecF_(m)|` which happens when `vecv, vecE` and `vecB` are mutually perpendicular to each other.
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