Question

Match Column I and Column II.

Column I		Column II
A	Biot-Savart's law	1	$\frac{\mu_0 I _1 I _2}{2 \pi d }$
B	Ampere's circuital law	2	$q[\vec{ E }+(\vec{ V } \times \vec{ B })]$
C	Force between two parallel currentcarrying conductors	3	$\oint \vec{B} \cdot \vec{d l}=\mu_0 \Sigma i$
D	Lorentz force	4	$\vec{B}=\frac{\mu_0 i}{4 \pi} \int \frac{d / \sin \theta}{r^2} \hat{n}$

• A. (A) $\rightarrow$(4) ; (B) $\rightarrow$(3) ; (C) $\rightarrow$ (1); (D) $\rightarrow$ (2)
• B. (A) $\rightarrow$ (2); (B) $\rightarrow$ (2); (C) $\rightarrow$ (4); (D) $\rightarrow$ (3)
• C. (A) $\rightarrow$ (4); (B) $\rightarrow$ (3); (C) $\rightarrow$ (2); (D) $\rightarrow$ (1)
• D. (A) $\rightarrow$ (2); (B) $\rightarrow$ (1); (C) $\rightarrow$ (4); (D) $\rightarrow$ (3)

Answer 1

Answer: (A)

(A) $\rightarrow(4) ;$ (B) $\rightarrow(3) ;$ (C) $\rightarrow(1)$; (D) $\rightarrow$ (2)