The magnetic field is weak in both A and C but strong in B since magnetic field strength increases with number of turns and quantity of current.
What are the factors affecting the strength of the magnetic field in a solenoid?
The strength of the magnetic field in a solenoid is affected by the following factors:
- number of coils
- the martial in the core of the solenoid
- the current passing through
The strength of the magnetic field of a solenoid ncreases when:
- The current is increased
- he number of turns is increased
- soft iron core is placed into the solenoid
Therefore, the magnetic field is weak in both A and C but strong in B.
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