Sail E0 Webinar
Question
A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil?
Options:
A .  Decreases
B .  Increases
C .  Remains same
D .  First increases and then decreases depending on the depth of iron in¬sertion
Answer: Option B

Submit Your Solution Below and Earn Points !
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

Latest Videos

Latest Test Papers