Question

Iron of relative permeability 500 is introduced as a core into a long current carrying solenoid. The magnetic induction within the solenoid

Answer 1

Answer:

magnetic field will increase by factor of 500

Explanation:

Magnetic field due to solenoid is given as

$B = \mu_o n i$

here we know

$\mu_o$ = permeability of free space

n = number of turns per unit length

i = current

as we know that the free space inside the solenoid is filled with a medium of relative permeability 500

so here magnetic field of the solenoid is increased and given as

$B = \mu_r \mu_o ni$

so magnetic field will increase by factor of 500

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Topic : Magnetic induction due to solenoid

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