Question

By increasing the number of turns 3 times in a torroidal solenoid,the magnetic field

will become three times
will remain unchanged
will reduce to one -third
none of these​

Answer 1

Answer:

Higher the number of turns, higher the length and thus the amount of current carrying coil material in use is higher and thus higher the magnetic field due to increased amount of current flowing through the solenoid as a result of the increased number of turns.