Match List I with List II.
$$\begin{array}{l|l} \textbf{List I} & \textbf{List II} \\ \hline \text{A. Gauss's law of magnetostatics} & \text{i. } \oint\vec E\cdot d\vec a = \dfrac1{\varepsilon_0}\int\rho\,dV \\ \text{B. Faraday's law of electromagnetic induction} & \text{ii. } \oint\vec B\cdot d\vec a = 0 \\ \text{C. Ampere's law} & \text{iii. } \oint\vec E\cdot d\vec l = -\dfrac{d}{dt}\int\vec B\cdot d\vec a \\ \text{D. Gauss's law of electrostatics} & \text{iv. } \oint\vec B\cdot d\vec l = \mu_0 I \end{array}$$
Choose the correct answer from the options given below:
Answer: (D) A-II, B-III, C-IV, D-I
- Gauss's law of magnetism: net magnetic flux through a closed surface is zero → ii.
- Faraday's law: emf round a loop equals minus the rate of change of flux → iii.
- Ampere's law: line integral of $\vec B$ equals $\mu_0 I$ → iv.
- Gauss's law of electrostatics: flux of $\vec E$ equals enclosed charge$/\varepsilon_0$ → i.
Solution by Sreeraj P, M.Sc Physics