Questions
An aluminum ring B faces an electromagnet A. The current i through A can be altered
a
whether I increases or decreases, B will not experience any force
b
if I decrease, 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, change in flux linked with coil B increases, hence anticlockwise current induces in coil B. As shown in the figure both the current produces repulsive effect.Talk to our academic expert!
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A current carrying solenoid is approaching a conducting loop as shown in the figure. The direction of induced current as observed by an observer on the other side of the loop will be
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