Two loops of radii 1:2 and have same magnetic moment calculate ratio of current
Answers
Answered by
2
given, Two loops of radii 1:2 and have same magnetic moment. we have to calculate ratio of currents.
we know, magnetic moment is given as
where A is area of loop , N is number of turns and I is the current through the loop.
given, ......(1)
......(2)
[ magnetic moments are same for both loops. ]
loop is circular in shape so, A = πr²
so,
from equations
or,
or,
or, = (2/1)² = 4/1
hence, ratio of currents is 4 : 1
Similar questions