What effect does increasing the current have on a solenoid?

Ampere’s law states that the magnetic field of a solenoid is directly proportional to the current supplied. This is expressed mathematically as:

B = μ n I

where,

B = magnetic field

μ = magnetic permeability

n = number of turns per length

I = current

Therefore, increasing the current will increase the magnetic field of a solenoid.

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