is a rectangular loop made of uniform wire. If 
, what is the magnetic force per unit length acting on wire 
due to wire 
, if ammeter reads 
? (The length of 
and 
are large in comparison with other two sides)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Given,
As resistance of both 
and 
is same and current in main branch is 
, then current in separate branches, is 
. We will assume 
and 
an infinite wire As we know that,
where, 
is force per unit length.
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