Published by:
CGP EDU Academic Team
Published on: September 11, 2026
At what distance from a long straight wire carrying a current of 
will the magnetic field be equal to 
?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Current (I) 
and magnetic field
. Consider magnetic field 
at distancer.
Magnetic field, 
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