Question

write the factor on which the magnectic field due to a current in a solonoid depends

Answer 1

Factors on which the strength of a magnetic filed produced by a current carrying solenoid depends:
1.Number of turns in the solenoid : The larger number of turns in the solenoid, stronger is the magnetic field produced.

2.Strength of current : The larger the current passed through the solenoid, stronger is the magnetic field produced.

3.Nature of the core material : By winding the coil over a soft iron cylinder, called core, the magnetic field can be increased several thousands times.

Hope it helps....

Answer 2

1. No.of turns in solenoid
2. Nature of Material