In the diagram, are the strength of the currents in the loop and straight conductors respectively.
. The net magnetic field at the centre
is zero.Then the ratio of the currents in the loop and the straight conductors is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Magnetic field at the center due to current
in the loop is
Magnetic field at the center due to current
through straight conductor is
As the net magnetic field at is zero (given), therefore
and
are equal in magnitude and opposite in directions.
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