JEE MAIN - Physics (2025 - 4th April Evening Shift - No. 6)
In an electromagnetic system, a quantity defined as the ratio of electric dipole moment and magnetic dipole moment has dimension of $\left[\mathrm{M}^{\mathrm{P}} \mathrm{L}^{\mathrm{Q}} \mathrm{T}^R A^{\mathrm{S}}\right]$. The value of P and Q are :
$-1,0$
$0,-1$
$-1,1$
$1,-1$
Explanation
Electric dipole moment $(\overrightarrow{\mathrm{P}})=\mathrm{q} \times 2 \ell$
Magnetic dipole moment $(\overrightarrow{\mathrm{M}})=\mathrm{IA}$
$$\left[\frac{\mathrm{P}}{\mathrm{M}}\right]=\left[\frac{\mathrm{LTA}}{\mathrm{~L}^2 \mathrm{~A}}\right]=\mathrm{L}^{-1} \mathrm{~T}=\mathrm{M}^0 \mathrm{~L}^{-1} \mathrm{~T}^1 \mathrm{~A}^0$$
After compering values of $\mathrm{P} \& \mathrm{Q}$ are $0,-1$
Correct Answer : Option 4
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