Questions
A coil and a bulb are connected in series with a dc source. When an external agent is inserting a soft iron core in the coil ,
detailed solution
Correct option is B
There will be self-induction effect when soft iron core is inserted.As a result current in the bulb will decrease.Talk to our academic expert!
Similar Questions
A coil is wound as a transformer of rectangular cross-section. If all the linear dimensions of the transformer are increased by a factor 2 and the number of turns per unit length of the coil remain the same, the self inductance increased by a factor of
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