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Tardigrade
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Physics
Two circular coils A and B are facing each other as shown in the diagram. The current i through A can be altered, then <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-rkuny5jdi4n5.png />
Q. Two circular coils
A
and
B
are facing each other as shown in the diagram. The current
i
through
A
can be altered, then
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A
there will be repulsion between
A
and
B
if
i
is increased
100%
B
there will be attraction between
A
and
B
if
i
is increased
0%
C
There will be neither attraction nor repulsion when
i
is changed
0%
D
Attraction or repulsion between
A
and
B
depends on the direction of current. It does not depend whether the current is increased or decreased
0%
Solution:
When current is increased in
A
, magnetic flux passing through
B
will increase, according to Lenz's law direction of induced current in
B
will be such as there is repulsion between
A
and
B
.