Write analogy between electrostatic and magnetism.
Write analogy between electrostatic and magnetism.
| Physical quantity | Electrostatic | Magnetism |
| $(1)$ Field | Electric field $\overrightarrow{\mathrm{E}}$ | Magnetic field $B$ |
| $(2)$ Pole strength | Charge $(q)$ | Pole $\left(q_{\mathrm{m}}\right)$ |
| $(3)$ Dipole moment | $p=q(2 a)$ | $m=q_{\mathrm{m}}(2 l)$ |
| $(4)$ Constant | $\frac{1}{4 \pi \in_{0}}$ | $\frac{\mu_{0}}{4 \pi}$ |
| $(5)$ Length of dipole | $2 a$ | $2 l$ |
|
$(6)$ Direction of dipole moment |
From negative charge to positive charge |
From south pole to north pole |
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