Electromagnetic Induction and Alternating Current 2 Question 6
####7. A conducting $\operatorname{rod} A B$ moves parallel to the $X$-axis in a uniform magnetic field pointing in the positive $z$-direction. The end $A$ of the rod gets positively charged.
(1987, 2M)
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Answer:
Correct Answer: 7. $\mathrm{T}$
Solution:
- Magnetic force on free electrons will be towards $B$. Therefore, at $B$, there is excess of electrons (means negative charge) and at $A$, there is defficiency of electrons (means positive charge).
