Magnetic field due to currentHard
Question
A conductor of length l and mass m is placed along the east-west line on a table. Suddenly a certain amount of charge is passed through it and it is found to jump to a height h. The earth′s magnetic induction is B. The charge passed through the conductor is
Options
A.
B.
C.
D.
Solution
Impulse = change in momentum
⇒(ilBᐃt) = m(
- 0) ⇒ (iᐃt) = ᐃq =
⇒(ilBᐃt) = m(
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