Physics for IGCSE & O level - Magnets And Currents (Section 11 - No. 14)
What happens to the strength of the magnetic field created by a coil of wire (solenoid) if the number of coils is increased?
The strength increases.
The strength decreases.
The strength stays the same.
The direction of the magnetic field is reversed.
Explanation
The strength of the magnetic field increases.
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