Questions
A conducting ring is placed around the core of an electromagnet as shown in fig. When key K is pressed, the ring
detailed solution
Correct option is C
When key k is pressed, current through the electromagnet start increasing i.e. flux linked with ring increases which produces repulsion effect.Talk to our academic expert!
Similar Questions
Some magnetic flux is changed from a coil of resistance 10. As a result, an induced current is developed in it, which varies with time as shown in figure. Find the magnitude of the change in flux through the coil in weber.
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