Magnetic field due to currentHard
Question
⇒ I (R(- ĵ) ×
) = √2IRB0
Possible values of ∴
= 
î and 
(î + ĵ)A particle of charge q and velocity v passes unreflected through a space with non-zero electric field E and magnetic field B. The unreflected conditions will hold ifOptions
A.signs of both q and E are reversed
B.signs of both q and B are reversed
C.both B and E are changed in magnitude, but keeping the product of |B| and |E| fixed.
D.both B and E are doubled in magnitude
Solution
= 0 ⇒
= |-vB| = vbv =
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