Three wires are carrying same constant current i in different direction. Four loops enclosing the wires in different manner are shown. The direction of 
is shown in the figure –
Column-I | Column-II |
(i) Along closed loop1 | [A] = μ0i |
(ii) Along closed loop2 | [B] = – μ0i |
(iii) Along closed loop3 | [C] = 0 |
(iv) Along closed loop 4 | [D] net work done by the magnetic force to move a unit charge along the loop is zero |
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
Ans.
(i) [B],[D]
(ii) [A],[D]
(iii) [B],[D]
(iv)[A],[D]
Sol.
for loop (1) 
= – μ 0 i
for loop (2) 
= μ 0 i
for loop (3) 
= – μ 0 i
for loop (4) 
= μ 0 i
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