Questions
An Aluminium ring B faces an electromagnet A. The current I through A can be altered. Then
a
Whether I increases or decreases, B will not experience any force
b
If I decreases, A will repel B
c
If I increases, A will attract B
d
If I increases, A will repel B
detailed solution
Correct option is D
If current through A increases, magnetic field linked with coil B increases, hence anticlockwise current induces in coil B. As shown in figure, both the current produce repulsive effect.Talk to our academic expert!
Similar Questions
The direction of induced current in the coils A and B in the coils A and B is the situation shown in the figure is
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