Electrostatics Ques 6
- Six point charges, each of the same magnitude $q$, are arranged in different manners as shown in Column II. In each case, a point $M$ and a line $P Q$ passing through $M$ are shown. Let $E$ be the electric field and $V$ be the electric potential at $M$ (potential at infinity is zero) due to the given charge distribution when it is at rest. Now, the whole system is set into rotation with a constant angular velocity about the line $P Q$. Let $B$ be the magnetic field at $M$ and $\mu$ be the magnetic moment of the system in this condition. Assume each rotating charge to be equivalent to a steady current.
(2009)
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Answer:
Correct Answer: 6.$\mathrm{A} \rightarrow \mathrm{p}, \mathrm{r}, \mathrm{s} ; \mathrm{B} \rightarrow \mathrm{r}, \mathrm{s} ; \mathrm{C} \rightarrow \mathrm{p}, \mathrm{q}, \mathrm{t} ; \mathrm{D} \rightarrow \mathrm{r}, \mathrm{s}$
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