A conductor moving in the magnetic field
and the induced current is
. If the magnetic field is doubled the induced current will
Text Solution
Verified by ExpertsThe correct answer is:
C
Given, initial magnetic field = B
Final magnetic field,
Final current = r
Since, emf,
where,
is magnetic field,
l is length of conductor,
v is velocity,
I is current
Resistance = R
Induced emf 

After magnetic field is doubled new current

B doubled then current I also doubled.
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