Published by:
CGP EDU Academic Team
Published on: August 23, 2026
A massless square loop, of wire of resistance 
, supporting a mass of 
, hangs vertically with one of its sides in a uniform magnetic field of 
, directed outwards in the shaded region. A dc voltage 
is applied to the loop. For what value of 
, the magnetic force will exactly balance the weight of the supporting mass of 
?
(If sides of the loop 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
For balancing 
,
,
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