Question

how to increase prevalence of magnetic field?​

Answer 1

Answer:

The strength of the magnetic field around a solenoid can be increased by:

increasing the number of turns on the coil.

increasing the current.

placing an iron core inside the solenoid.

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Answer 2

Answer:

$\underline{\huge{Answer:-}}$

The strength of the magnetic field around a solenoid can be increased by:

• increasing the number of turns on the coil.
• increasing the current.
• placing an iron core inside the solenoid.